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).

Sentence: Neptune has a greater mass then Pluto. Question: Which planet emits stronger gravitational waves? (A) Neptune (B) Pluto
Pluto

Sentence: A shopping cart rolls by itself across a parking lot. Then it gets to a field. The cart rolls only a little more after it enters the field. Question: Why does this happen? (A) the parking lot is a rougher surface (B) the field is a rougher surface
the parking lot is a rougher surface

Sentence: Sue is in the airport terminal waiting for her flight to board and watching the planes as they fly in. She sees a plane a good distance from the airport flying closer and a few minutes later that same plane lands and pulls up to the terminal outside. Question: When will the plane look like it has less size? (A) when it's off in the distance (B) when it right outside the terminal.

when it right outside the terminal