I have been accused . . . . . . . . many things in my life but never of cowardice. A. to B. in C. of D. at

The correct answer is C. of.

The preposition “of” is used to indicate that someone

The other options are not correct because they do not make sense in the context of the sentence. The preposition “to” is used to indicate that someone is being asked to do something. The preposition “in” is used to indicate that someone is located in a place. The preposition “at” is used to indicate that someone is doing something at a specific time or place.

Here are some examples of how the preposition “of” can be used to indicate that someone is being accused of something:

• The police accused him of murder.
• The judge found him guilty of theft.
• The jury acquitted him of the charges.

I hope this helps!