Question

A passive verb is a good choice if you wish to: A. establish a formal tone.

Answer 1

The correct answer is to B. De-emphasize the subject.

Very often the subject can be completely omitted.

Burglars committed the crime
The crime was committed (by the burglars).

In the passive version, the subject is irrelevant.

Answer 2

Answer:

I don't know the answer but I am 100% sure it's not C emphasize the subject.