TASK DEFINITION: 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.
PROBLEM: Question: If a person sank lower within the mesosphere, would the temperature 
 Option1: increase 
 Option2: decrease 
 Explanation: In the mesosphere, temperature decreases as altitude increases.

SOLUTION: increase

PROBLEM: Question: If Mona is excavating an archeological site and she discovers some fossils near the surface then compares them to fossils she found deeper down, which fossils will be younger? 
 Option1: near the surface 
 Option2: deeper down 
 Explanation: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.

SOLUTION: near the surface

PROBLEM: Question: Two people are standing out in the sunlight; one with dark skin, one with light skin. The person with light skin will be burned 
 Option1: more 
 Option2: less 
 Explanation: Light-skinned people get sunburned more quickly than people with darker skin.

SOLUTION:
more