Try not to ask for AR questions here but the answer is because he doesn't want the furies and other demons to know where he is
Answer:
what? you would get honked at by incoming cars by the way.
Explanation:
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.