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".

A crater formed on the moon. (A) A comet passed by the moon. (B) A comet collided with the moon., Question: cause
B

The father shut off the children's television. (A) It was bedtime for the children. (B) The children were watching cartoons., Question: cause
A

The girl wanted to demonstrate proper etiquette. (A) She threw away her napkin after eating. (B) She put her napkin on her lap before eating., Question: effect

B