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'.
One example: Sentence: Jacob and Benny are squatting at the gym. Jacob has thin frail legs and Benny has big strong legs. Question: Who squats less weight? (A) Jacob (B) Benny
Solution is here: A
Explanation: Typically, people with thin frail legs squat less weight than people with big strong legs, so the answer is A.

Now, solve this: Sentence: Mike's tank weighs much more than his motorcycle. Question: Which object takes longer to speed up? (A) motorcycle (B) tank
Solution:
B