A.I. Explanation:

Correct answer: is

Explanation: The word 'is' serves as a linking verb that connects the subject 'what' to the complement 'to be achieved,' fitting grammatically as it indicates a state of being necessary for achieving results.

Meaning: 'Is' is the third person singular present form of 'be,' used to indicate existence or identity.

Wrong options:

• need: The word 'need' implies necessity but does not function as a linking verb in this context, making it grammatically incorrect here.
• must: 'Must' indicates obligation but does not fit the grammatical structure required in this sentence, as it cannot serve as a linking verb.
• requires: 'Requires' suggests a demand but does not fit the grammatical structure needed here, as it cannot act as a linking verb.

Correct answer: developing

Explanation: The word 'developing' is a gerund that fits contextually as it describes the ongoing process of enhancing people's skills, aligning with the focus on helping individuals learn and grow.

Meaning: 'Developing' means to improve or enhance skills and abilities over time.

Wrong options:

• evaluating: 'Evaluating' refers to assessing performance, which does not align with the proactive approach of helping people learn.
• recruiting: 'Recruiting' involves hiring new employees, which is not relevant to the context of supporting existing staff's growth.
• alerting: 'Alerting' means to notify or warn, which does not fit the context of fostering development.

Correct answer: which

Explanation: The word 'which' is a relative pronoun that introduces a clause providing additional information about 'the performance agreement,' fitting grammatically and contextually to clarify the relationship between the agreement and performance planning.

Meaning: 'Which' is used to refer to a specific thing previously mentioned, in this case, the performance agreement.

Wrong options:

• what: 'What' is an interrogative pronoun and does not fit the grammatical structure needed to introduce a relative clause here.
• this: 'This' is a demonstrative pronoun that does not provide the necessary connection to the clause about the performance agreement.
• of which: 'Of which' is a more complex structure that does not fit smoothly into the sentence, making it less appropriate than 'which'.

Correct answer: guiding

Explanation: The word 'guiding' is a gerund that fits contextually as it describes the action of leading or directing improvement and development activities, aligning with the overall theme of performance management.

Meaning: 'Guiding' means to lead or direct someone in a particular direction or towards a goal.

Wrong options:

• reassuring: 'Reassuring' means to comfort or restore confidence, which does not align with the context of directing activities.
• heralding: 'Heralding' means to announce or proclaim, which does not fit the context of managing improvement activities.
• concluding: 'Concluding' implies bringing something to an end, which is contrary to the ongoing nature of improvement and development.

Correct answer: when

Explanation: The word 'when' is a conjunction that introduces a temporal clause, fitting grammatically and contextually to indicate the timing of reviewing performance in relation to the achievement of plans.

Meaning: 'When' refers to the time at which something happens, in this case, the review of performance.

Wrong options:

• as: 'As' indicates simultaneous actions but does not convey the specific timing needed in this context.
• until: 'Until' suggests a limit or endpoint, which does not fit the context of reviewing performance at a specific time.
• since: 'Since' indicates a starting point in time, which does not align with the context of reviewing performance.