With no explanation, chose the best option from "A" or "B". Alex runs into Kelly, his best friend's ex-wife, and she asks him if he'd like to stop by and see her new apartment. Alex has to decide if it's a good idea to visit Kelly at home.

A: Alex goes to Kelly's house for dinner, and they end up in a romantic encounter that night.
B: Alex thanks Kelly for the invitation but tells her that he would be uncomfortable being alone with her, given his relationship with her ex-husband.
B.