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.

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.

A: Decreased
****
Q: Question: If Mona adds more water to her cauldron of melting rock, what will happen to the melting point of that rock? 
 Option1: increase 
 Option2: decrease 
 Explanation: As the amount of water increases, the melting point of rock decreases.

A: decrease
****
Q: Question: Bryan was tasked with categorizing various fossils that the archeology team dug up. He knew they found some in rock layers near the surface and others in layers much farther below the ground. Which should he categorize as the older ones? 
 Option1: near surface fossils 
 Option2: farther down fossils 
 Explanation: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.

A:
farther down fossils
****