You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the **incorrect** answer (return the string of the incorrect option, not A/B).

Example Input: Sentence: Todd landed on Mercury as part of an historic mission. He saw that Mercury had a very small fraction of the mass of Earth. Question: On which planet will Todd feel less gravitational force? (A) Earth (B) Mercury
Example Output: Earth

Example Input: Sentence: Gina and Debbie are sliding down a snowy hill. Gina has a heavy sled, and Debbie has a light cafeteria tray. Question: Which one is faster to speed up? (A) heavy sled (B) light cafeteria tray
Example Output: heavy sled

Example Input: Sentence: Astronauts exploring the galaxy first land on a red planet and later land on a green planet. The red planet is larger in mass than the green planet. Question: On which of these planets will the astronauts feel a lower gravitational force? (A) the red planet (B) the green planet
Example Output:
the red planet