A.I. Explanation:

Correct answer: flashed

Explanation: The word 'flashed' is the past tense of the verb 'flash,' which fits grammatically as it describes an action that occurred in the past, aligning with the time reference of 'In 2018.'

Meaning: 'Flashed' means to emit a sudden burst of light or to appear briefly and suddenly.

Wrong options:

• receives: The verb 'receives' is in the present tense and does not fit the past context of the sentence.
• prove: The verb 'prove' does not relate to the action of a lightning bolt and is not in the correct tense.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• reveal: The verb 'reveal' is also in the present tense and does not match the past context required here.
• transmitted: The verb 'transmitted' is in the past tense but does not relate to the action of a lightning bolt.

Correct answer: detailed

Explanation: The term 'detailed' is an adjective that describes the recordings made by the telescopes, fitting grammatically as it modifies the noun 'recordings.'

Meaning: 'Detailed' means having many details or being thorough in description.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe the nature of the recordings.
• flashed: The verb 'flashed' does not describe the recordings and is not an appropriate adjective.
• prove: The verb 'prove' does not relate to the recordings and does not fit grammatically.
• reveal: The verb 'reveal' does not modify 'recordings' and is not suitable in this context.
• transmitted: The verb 'transmitted' does not describe the recordings and is not an appropriate adjective.

Correct answer: reveal

Explanation: The verb 'reveal' fits grammatically as it describes what the recordings do, maintaining the present tense to indicate an ongoing action related to the findings.

Meaning: 'Reveal' means to make something known or visible that was previously hidden.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe the action of the recordings in this context.
• flashed: The verb 'flashed' does not relate to the action of the recordings and is not appropriate here.
• prove: The verb 'prove' does not accurately describe what the recordings do in this context.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' does not describe the action of the recordings and is not suitable.

Correct answer: triggers

Explanation: The word 'triggers' is a verb that fits grammatically as it describes what causes lightning, aligning with the context of the sentence discussing the process of lightning formation.

Meaning: 'Triggers' means to cause something to happen or to initiate a process.

Wrong options:

• receives: The verb 'receives' does not relate to the cause of lightning and does not fit grammatically.
• flashed: The verb 'flashed' does not describe a cause and is not appropriate in this context.
• prove: The verb 'prove' does not accurately describe what causes lightning and does not fit the context.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' does not relate to the cause of lightning and is not suitable.