" is okay. A) and B) are equally correct, but "her" needs an antecedent. What did the policeman say at the door of the woman's house?
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Grammar GeekThere are two (or more) police officers. One is by the door. It's a question of what that person saidIt's this one.