DIRECTIONS: in the following question, a part of sentence is bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose “No Improvement” option.
No one could explain how a calm and balanced person like him could penetrate such a mindless act on his friends.

Options

A. a) perpetuate
B. b) perpetrate
C. c) precipitate
D. d) No Improvement

Answer

B

Explanation

perpetrate (Verb) : to commit a crime or do something wrong or evil penetrate (Verb): to go into/through something perpetuate (Verb) : to make something such as a bad situation, a belief, etc. continue for a long time
This system perpetuated itself for several centuries. precipitate (Verb) : to make something, especially something bad, happen suddenly or sooner than it should ,
His resignation precipitated a leadership crisis Here, perpetrate is the right usage.