You will be given a definition of a task first, then some input of the task.
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".

I misplaced my wallet. (A) I retrieved my phone. (B) I retraced my steps., Question: effect
Output:
B