With no explanation, chose the best option from "A" or "B". Sally was shopping for her mother-in-law to stock up on household supplies. Sally wanted to make sure there were enough supplies to last several months.

A: Sally fills the cart with extra items that are in addition to the things her mother-in-law authorized her to buy with her credit card.
B: Sally buys extra items with her own money and figures she will work out repayment with her mother-in-law later.
B.