With no explanation, chose the best option from "A" or "B". Dave who is an office manager is asked on a date by Cindy his coworker, in front of the other office workers. Dave wants to respond to Cindy's proposal of a date.

A: Dave tells Cindy that while she's nice he does not mix professional and personal lives, so he has to decline.
B: Dave tells Cindy that he would love to take her out since she is such a pretty girl.
A.