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: Jeff heated the pot of boiling water. What happens to the dissolved oxygen contained within the water? 
 Option1: it increases 
 Option2: it decreases 
 Explanation: Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains.
[A]: it decreases


[Q]: Question: Dana clipped her nails short, and waited for them to grow out again. When her nails reached a long length, Dana noted that the number of cells within them must have 
 Option1: decreased 
 Option2: increased 
 Explanation: As the nail grows, more cells are added at the nail bed.
[A]: increased


[Q]: Question: What happens when we head from the core towards the surface of the earth? 
 Option1: temperatures decrease 
 Option2: temperatures increase 
 Explanation: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.
[A]:
temperatures decrease