In this task, you are given a premise sentence, two possible options and a question word. If the question was cause you should select the option that is a possible cause of the premise sentence, and if the question word was effect you should find the option which is a possible effect of the premise sentence. Answer with "A" or "B".

[EX Q]: The balloon expanded. (A) I blew into it. (B) I pricked it., Question: cause
[EX A]: A

[EX Q]: The young woman was denied entrance into the bar. (A) Her friends stood her up. (B) She forgot her ID., Question: cause
[EX A]: B

[EX Q]: The screen on the laptop went black. (A) The laptop's warranty expired. (B) The laptop's battery died., Question: cause
[EX A]:
B