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 Input:
The boy skipped dinner. (A) His mother cooked his favorite meal. (B) He ate a big lunch., Question: cause

Ex Output:
B


Ex Input:
The hamburger meat browned. (A) The cook froze it. (B) The cook grilled it., Question: cause

Ex Output:
B


Ex Input:
The woman pressed down on the piano key. (A) A sound played. (B) The key got stuck., Question: effect

Ex Output:

A