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.
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Question: Question: John observed that machines are not very helpful in performing work because they decrease the amount of force, and also make the distance the force is applied 
 Option1: Greater 
 Option2: Lesser 
 Explanation: Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.

Answer: Lesser


Question: Question: What happens to a heavy car when it has the same power as a light car? 
 Option1: accelerates faster 
 Option2: accelerates slower 
 Explanation: The smaller its mass is, the greater its acceleration for a given amount of force.

Answer: accelerates slower


Question: Question: When a river gets emptied of a lot of waste chemicals it becomes 
 Option1: cleaner 
 Option2: dirtier 
 Explanation: More pollutants mean poorer air quality.

Answer:
cleaner