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".

Example Input: The water in the teapot started to boil. (A) The teapot cooled. (B) The teapot whistled., Question: effect
Example Output: B

Example Input: The friends' debate dragged on interminably. (A) The friends saw eye to eye. (B) The friends were splitting hairs., Question: cause
Example Output: B

Example Input: Several witnesses of the crime testified against the suspect. (A) The suspect was acquitted. (B) The suspect was convicted., Question: effect
Example Output:
B