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.

[EX Q]: Question: The ball began to raise slowly above the table. The higher it rises above the table, the potential energy will 
 Option1: decrease 
 Option2: increase. 
 Explanation: So the higher an object is above a surface, the more potential energy it has.
[EX A]: increase.

[EX Q]: Question: The blood vessels near the top of the skin do what when it's cool? 
 Option1: enlarge 
 Option2: contract 
 Explanation: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
[EX A]: contract

[EX Q]: Question: Bonnie is studying cells. She notices that certain cells are active. The cells that are active have 
 Option1: more mitochondria 
 Option2: less mitochondria. 
 Explanation: Cells that are very active would typically have more mitochondria than cells that are less active.
[EX A]:
more mitochondria