TASK DEFINITION: You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.
PROBLEM: Question: What happens to a light car when it has the same power as a heavy car? 
 Option1: accelerates faster 
 Option2: accelerates slower 
 Explanation: The smaller its mass is, the greater its acceleration for a given amount of force.

SOLUTION: accelerates faster

PROBLEM: Question: If someone has a larger than average physical heart then it will beat _____ in order to pump blood. 
 Option1: more 
 Option2: less 
 Explanation: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.

SOLUTION: less

PROBLEM: Question: Two suns closing in on each other will have _____ gravitational pull between them. 
 Option1: increasing 
 Option2: decreasing 
 Explanation: The closer objects are, the stronger the gravitational pull between them.

SOLUTION:
increasing