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 Jim starts exercising and performs no anaerobic exercises, would his muscles get 
 Option1: bigger 
 Option2: smaller 
 Explanation: Anaerobic exercises cause muscles to get bigger and stronger.

SOLUTION: smaller

PROBLEM: Question: Compared to an item with many carbon atoms an item with few carbon atoms will boil 
 Option1: faster 
 Option2: slower 
 Explanation: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.

SOLUTION: faster

PROBLEM: Question: If Jim's country increases use of fossil fuels, what will happen to the amount of pollution it produces? 
 Option1: increase 
 Option2: decrease 
 Explanation: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.

SOLUTION:
increase