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 animal species became endangered. (A) Their habitat was destroyed. (B) Their predators went extinct., Question: cause
Example output: A
Example explanation: The question word is cause, so we should find the possible cause of the premise. Option A can be the cause of the premise, and the output should be "A".
Q: The woman betrayed her friend. (A) Her friend sent her a greeting card. (B) Her friend cut off contact with her., Question: effect
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
B