With no explanation, chose the best option from "A" or "B". Bill is going to the birthday party of his friend, Jack, but he is too busy recently to shop for birthday gift. Bill wants to celebrate Jack's birthday.

A: Bill spends 15 minutes shopping and buys a regular T-shirt for Jack as a birthday gift.
B: Bill asks his mother to make him a dog-like  costume, and he wears it to Jack's birthday.
B.