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.

Question: Will was farming in a rich country when he noticed he his energy consumption was high. Despite this, his consumption of energy is likely much _____ than that of a poor country. 
 Option1: lesser 
 Option2: greater 
 Explanation: People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do.
greater

Question: A increase in the size of a telescope results in a/an _____ in ability to collect light. 
 Option1: increase 
 Option2: decrease 
 Explanation: Larger telescopes can collect more light.
increase

Question: Hayley was studying the relationship between mass and inertia in her science class. Her teacher gave her the example of an elephant and a puppy. The elephant has a greater mass than the puppy, so the elephant would have _____ inertia. 
 Option1: greater 
 Option2: less 
 Explanation: Objects with greater mass have greater inertia.

greater