TASK DEFINITION: You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.
PROBLEM: Sentence: It only took Lisa two hours to get to Las Vegas, despite the long distance. Question: Lisa must have traveled how? (A) By Car (B) By Airplane

SOLUTION: By Airplane

PROBLEM: Sentence: Jasper is carrying his nephew in the park.  Then it's his niece's turn.  His niece is five years older and weighs more. Question: Who has more of a gravity pull? (A) the niece (B) the nephew

SOLUTION: the niece

PROBLEM: Sentence: Terrie leads her dog team to deliver some food and other things to someone in a snowbound cabin. Terrie's dogs pull the empty sled to a nearby supply station, then pull the loaded sled on to the snowbound cabin. Question: In which situation will the dogs have more difficulty in getting the sled moving swiftly? (A) when the sled is empty (B) when the sled is weighed down with supplies

SOLUTION:
when the sled is weighed down with supplies