Acutely affected by external impressions

A. Ingenious

B. Impressionable

C. Credulous

D. Sensitive

Answer: Option D

Solution(By Examveda Team)

One word substitute is Sensitive.

Ingenious: (of a person) clever, original, and inventive.
Impressionable: easily influenced.
Credulous: having or showing too great a readiness to believe things.
Sensitive: quick to detect or respond to slight changes, signals, or influences.