Teacher: 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".
Teacher: Now, understand the problem? If you are still confused, see the following example:
The animal species became endangered. (A) Their habitat was destroyed. (B) Their predators went extinct., Question: cause
Solution: A
Reason: The question word is cause, so we should find the possible cause of the premise. Option A can be the cause of the premise, and the output should be "A".

Now, solve this instance: The milk stayed cold. (A) It was pasteurized. (B) I stored it in the refrigerator., Question: cause
Student:
B