I'm pretty sure the answer is E) she is surrounded by gray stone walls in the tower
I belive that it is (D) becuse it sounds the best. But I cant give an definent answer becuse u did not give a pic of the passage.
The answers are, 1.) It supports the idea that the burglary was planned in advance by men who were not career criminals or “typical” burglars. 2.) It suggests that the burglary was complicated and needed to be deliberately planned. 3.) It creates an unbiased tone, which allows the facts to speak for themselves.