You are given a sentence, a question and two answer options. Your task is to write down the index ('A' or 'B') of the **incorrect** option for the given question.

Let me give you an 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
The answer to this example can be: B
Here is why: Typically, people with thin frail legs squat less weight than people with big strong legs, so the incorrect answer is Benny.

OK. solve this:
Sentence: Tony has a beach ball that he loves to play with. He notices that the beach ball travels farther when he kicks it across the asphalt road than when he kicks it across the gravel road. Question: If he kicks it with the same force in each situation, which road is more smooth? (A) gravel (B) asphalt
Answer:
A