Correct Answer: Astute

Solution : The correct option is the second option.

Explanation:
The word perceptive refers to having or showing keenness of insight, understanding, or intuition. It suggests the ability to understand things quickly and accurately. Astute, which is the synonym for "perceptive" in this context, aligns closely with this meaning. It describes someone who is sharp, clever, and quick to understand or judge situations accurately.

The meanings of the other options are as follows:

• Conflicted means experiencing a struggle or conflict.
• Imbecile refers to a term describing someone considered foolish or lacking intelligence.
• Witless means lacking wit or intelligence.

Therefore, the correct answer is astute.