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: As two objects move apart, the force of gravity between them 
 Option1: increases 
 Option2: decreases 
 Explanation: Objects that are closer together have a stronger force of gravity between them.

Answer: decreases


Question: 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.

Answer: increase


Question: Question: As Dean was surveying the town, he noted that the more kids that the neighbors had, the population of the town went 
 Option1: down 
 Option2: up 
 Explanation: With exponential growth, the population starts out growing slowly. As population size increases, the growth rate also increases.

Answer:
up