Answer:
#3 & #4
Explanation:
Saving money to use against Hitler
Third person omniscient narrator knows all the thoughts, actions, and feelings of all characters also used they, them
You have to be more specific
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.