instruction:
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:
Question: If Mona is holding a baseball above a table and then decreases the height of that baseball from the table, what happens to the potential energy of the baseball? 
 Option1: increases 
 Option2: decreases 
 Explanation: So the higher an object is above a surface, the more potential energy it has.
answer:
decreases


question:
Question: Greta has 15 resistors in series on her circuit, while Evan has 2 similar resistors in series on his circuit. Whose circuit has the greatest resistance? 
 Option1: Greta 
 Option2: Evan 
 Explanation: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.
answer:
Greta


question:
Question: Mona lives in a nation that uses a lot of fossil fuels. What would happen to her countries levels of air pollution if they were to decrease their usage? 
 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.
answer:

decrease