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.

[EX Q]: Sentence: Jimbo's race car is much faster then his bulldozer. Question: If both vehicles are driven for 30 seconds, which one will have gone the greater distance? (A) race car (B) bulldozer
[EX A]: race car

[EX Q]: Sentence: A bulldozer weighs more then a truck. Question: If both are accelerating, which will take longer to reach top speed? (A) truck (B) bulldozer
[EX A]: bulldozer

[EX Q]: Sentence: A black hole is smaller in size than the sun. Question: Which will have the strongest gravity? (A) Sun (B) Black hole
[EX A]:
Black hole