In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

[EX Q]: Charlie decided to quit smoking so he threw away his carton but not his lighter because the _ was a gift. (A) carton (B) lighter
[EX A]: B

[EX Q]: Mary gave a framed picture as a gift to Amy because _ was invited to her birthday party. (A) Mary (B) Amy
[EX A]: A

[EX Q]: Joel knew what was going to happen in the movie and told Aaron, so _ felt sorry for spoiling the surprise. (A) Joel (B) Aaron
[EX A]:
A