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.

Q: 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.

A: Lesser
****
Q: Question: If Mona is building a new mirror and she wants it to refract less light, what should she do to the surface of the lens? 
 Option1: make it more curved 
 Option2: make it less curved 
 Explanation: The more curved the surface of a lens is, the more it refracts light.

A: make it less curved
****
Q: Question: Mona lives on a planet with an unstable population. If the number of people on her planet were to decrease, what would happen to global warming on her planet? 
 Option1: increase 
 Option2: decrease 
 Explanation: For example, more people on the Earth means more people contributing to global warming and pollution.

A:
decrease
****