I don't think she is afraid . . . . . . . . the dogs.

A. on

B. of

C. in

D. with

Answer: Option B

Solution(By Examveda Team)

A Preposition is a word used to link noun, pronoun or phrases to other words within a sentence.
In the blank, preposition "of" will be used because preposition "of" is used after adjectives like afraid of, ashamed of, capable of, tired of etc.