With no explanation, chose the best option from "A" or "B". Dave and his friend Larry are eating at a restaurant when Dave gets a phone call from his wife asking him to come pick her up. Dave wants to respond to his wife's request.

A: Dave tells his wife he'll be right there and tells Larry goodbye and exits the restaurant.
B: Dave tells his wife he's in the middle of something, and he can't leave, so she should call a cab.
B.