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.

[EX Q]: Question: A family that is very small, compared to one that is enormous, will have allele differences that are 
 Option1: smaller 
 Option2: greater 
 Explanation: The smaller a population is, the more allele frequencies may drift.
[EX A]: smaller

[EX Q]: Question: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be cooler in the end is the one that moves 
 Option1: faster 
 Option2: slower 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.
[EX A]: slower

[EX Q]: Question: Louis notices that Neptune is farther from the sun than Mercury. Which planet will take longer to rotate around the sun? 
 Option1: Mercury 
 Option2: Neptune 
 Explanation: The planets further from the Sun will have bigger orbits, and therefore take longer to revolve around the Sun.
[EX A]:
Neptune