Amy and Kevin Hall each had an authorized credit card with both of their names on it. Amy and Kevin separated. Kevin called the credit card company and asked that to have the credit card cut off to Amy. The company said that Kevin must return Amy’s card to it before the account would be blocked. Before Kevin possession of Amy’s card, she charged $500. In this situation
A. Kevin and Amy are both liable for the $500 she charged after they separated
B. Amy, but not Kevin, is liable for the $500
C. Kevin, but not Amy, is liable for the $500
D. They are both liable, but only for a maximum of $50, regardless of how much was charged