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: If Milo's engine is running hot, how will adding oil affect friction? 
 Option1: increase 
 Option2: reduce 
 Explanation: To reduce friction, oil is added to the engine.
[EX A]: reduce

[EX Q]: Question: Something with less hydrogen ions would have what pH value? 
 Option1: high 
 Option2: low 
 Explanation: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
[EX A]: high

[EX Q]: Question: Endotherms have the ability to regulate their own temperature. By decreasing it's rate of metabolism, the body heat becomes 
 Option1: Decreased 
 Option2: Increased 
 Explanation: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.
[EX A]:
Decreased