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.

Sentence: Two cannonballs were being shot from a cannon to celebrate a holiday. The first cannonball weighed twice as much as the second. Question: Which one left the cannon at a higher rate of speed? (A) the first cannonball (B) the second cannonball
A

Sentence: To save money, the contractor stopped buying the costlier wall supports he was required to use and started using some cheaper ones instead. As a result, several roofs collapsed. Question: Which wall supports were thinner? (A) The expensive wall supports were thinner (B) The cheaper wall supports were thinner
A

Sentence: It only took Lisa two hours to get to Las Vegas, despite the long distance. Question: Lisa must have traveled how? (A) By Car (B) By Airplane

A