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: If Milo calms down and his heart starts pumping less blood with each stroke, what happens to his heart rate? 
 Option1: increases 
 Option2: decreases 
 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: increases

PROBLEM: Question: Mona lives in a city that doesn't use much oil. If the mayor of that city decides to change their policy and the city begins using more oil, what happens to the amount of pollution generated by the city? 
 Option1: increases 
 Option2: decreases 
 Explanation: Greater use of oil and other fossil fuels causes more pollution.

SOLUTION: increases

PROBLEM: Question: Mike lives in the USA while Mosha lives in Nigeria, which likely uses less energy on a daily basis? 
 Option1: Mike 
 Option2: Mosha 
 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.

SOLUTION:
Mosha