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.

[EX Q]: Sentence: A skateboard's wheels get less hot riding through an auditorium compared to a concert hall. Question: Which surface offers greater resistance? (A) concert hall (B) auditorium
[EX A]: B

[EX Q]: Sentence: Superman is the strongest person on earth. Him and Batman decide to see who can throw a car the longest distance. Question: Who wins this face off? (A) Batman(B) Superman
[EX A]: A

[EX Q]: Sentence: Lisa is studying for her exam. She is working at her desk on the computer and reading. She has no issues reading the tiny print. Question: The light source in the room must be a? (A) Desk Lamp (B) Floor Lamp
[EX A]:
B