Choose the pair in which the words are differently related.

Answer: Option A

Explanation:

All except Listen are physical activities.

But First is most difficult :)

Answer: Option C

Explanation:

All except Character are external qualities.

Answer: Option B

Explanation:

Beethovan was a musician, rest were scientists.

Answer: Option B

Explanation:

In all other pairs, second requires the first to function.

Answer: Option D

Explanation:

In all other pairs, first is essentially required to use the second.