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).

Q: Sentence: Sliding a stake across the carpet results in less friction then sliding it across the drapes. Question: Which surface will force the stake to travel slower? (A) carpet (B) drapes

A: carpet
****
Q: Sentence: A steel car weighs more then an aluminum car. Question: If both are racing, which will take longer to get up to top speed? (A) aluminum car (B) steel car

A: aluminum car
****
Q: Sentence: Mike was comparing the mass of a boulder and a pebble. He found that the mass of the boulder was much greater then the mass of the pebble. Question: Which item emits weaker gravity? (A) boulder (B) pebble

A:
boulder
****