With no explanation, chose the best option from "A" or "B". Robert sees that his girlfriend's birthday is coming up, but he is nearly broke and can't afford the expensive necklace she wants. Robert wants to buy his girlfriend a necklace for her birthday.

A: Robert takes extra shifts at work in order to earn the extra money he needs to buy the necklace for his girlfriend.
B: Robert maxes out his credit card to buy the expensive necklace his girlfriend wants.
A.