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.
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Question: Question: When we get lower in the air what happens to the temperature? 
 Option1: goes up 
 Option2: goes down 
 Explanation: In the mesosphere, temperature decreases as altitude increases.

Answer: goes up


Question: Question: When everyone can eat what happens to the number of people that die? 
 Option1: increases 
 Option2: decreases 
 Explanation: With better food and less chance of disease, the death rate fell.

Answer: decreases


Question: Question: Gina has longer fingernails than John. Who has more cells on their nails? 
 Option1: John 
 Option2: Gina 
 Explanation: As the nail grows, more cells are added at the nail bed.

Answer:
Gina