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".

The customer came into the boutique. (A) She left her wallet at home. (B) The window display caught her eye., Question: cause
B