Answer: Keep them safe in a deposit box
Explanation:
Since Tammy is going on a 2-week vacation overseas and she is planning on taking two credit cards, the thing to do with the other credit cards while she is gone is to keep them safe in a deposit box.
There's no need for him to cancel the cards. Also, the cards are not stolen and should not be reported stolen and he shouldn't give them to someone else in order to prevent fraud. He should keep the cards safely till he comes back.
