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".

[EX Q]: Air pollution in the city worsened. (A) Factories increased their production. (B) Factories shut down., Question: cause
[EX A]: A

[EX Q]: The woman dangled the biscuit above the dog. (A) The dog jumped up. (B) The dog scratched its fur., Question: effect
[EX A]: A

[EX Q]: The woman refused a second beer. (A) She was the designated driver for the night. (B) She was familiar with the bartender., Question: cause
[EX A]:
A