You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct option for the given question. Write down the answer index: 'A' or 'B'.

Ex Input:
Sentence: John looked up and saw both the sun and moon in the sky. The sun was closer to him then the moon was. Question: Which object appeared brighter to him? (A) sun (B) moon

Ex Output:
A

Ex Input:
Sentence: A leaf skidding onto a dirty porch gets a lot hotter then one skidding onto a clean porch. Question: Which surface will allow the leaf to skid at a higher rate of speed? (A) dirty porch (B) clean porch

Ex Output:
B

Ex Input:
Sentence: Carrie has locked everyone in the gym and is doing strenuous work to kill them all. Robert is walking down the road at a leisurely pace. Question: Who will be sweatier? (A) Carrie will sweat more (B) Robert will sweat more

Ex Output:
A