Instructions: 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).
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
Output:
the red planet