A.I. Explanation:

Correct answer: transmitted

Explanation: The word 'transmitted' fits grammatically as it indicates the action of sending sound through vibrations, aligning with the context of how bone conduction headphones work. It is in the correct tense and form to describe the process of sound movement.

Meaning: 'Transmitted' means to send or convey something from one place to another, in this case, sound through vibrations on the skull.

Wrong options:

• formed: 'Formed' implies creation or shaping, which does not accurately describe the process of sound moving through vibrations.
• counted: 'Counted' refers to quantifying something, which is irrelevant in the context of sound transmission.
• transformed: 'Transformed' suggests a change in form or appearance, which does not apply to the process of sound being conveyed through vibrations.

Correct answer: multiple

Explanation: The word 'multiple' is appropriate as it indicates more than one pair of headphones, fitting the context of users having various headphones for different situations. It matches the plural form required by the sentence.

Meaning: 'Multiple' means more than one or several, indicating that users possess various pairs of headphones.

Wrong options:

• composite: 'Composite' refers to something made up of various parts, which does not fit the context of having several pairs of headphones.
• imperfect: 'Imperfect' suggests a lack of completeness or flaws, which is not relevant to the quantity of headphones owned.
• integral: 'Integral' means essential or necessary, which does not convey the idea of having several pairs.

Correct answer: Rather than

Explanation: The phrase 'Rather than' is used to indicate a preference or contrast, fitting the context of describing how bone conduction headphones differ from traditional headphones. It connects the two ideas logically and grammatically.

Meaning: 'Rather than' means instead of, highlighting the difference in placement of bone conduction headphones compared to regular ones.

Wrong options:

• More than: 'More than' indicates a greater quantity, which does not fit the context of contrasting headphone types.
• Despite of: 'Despite of' is grammatically incorrect; the correct form is 'despite,' and it does not convey the intended contrast in this context.
• Less than: 'Less than' implies a smaller quantity or degree, which does not apply to the comparison being made.

Correct answer: pick

Explanation: The word 'pick' fits grammatically as it indicates the action of noticing or selecting sounds from the environment, aligning with the context of being aware of surroundings while using bone conduction headphones.

Meaning: 'Pick' means to choose or notice something, in this case, sounds and environmental cues.

Wrong options:

• level: 'Level' refers to a position or standard, which does not fit the action of noticing sounds.
• take: 'Take' implies receiving or obtaining, which does not accurately describe the act of noticing sounds in the environment.
• make: 'Make' suggests creating or forming, which is not relevant to the context of perceiving sounds.