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: Rich was examining a cliff face. Which part of the cliff is younger, geologically speaking? 
 Option1: the base 
 Option2: the top 
 Explanation: The upper rock layers are much younger.

Answer: the top


Question: Question: What will happen to Jim's muscle strength if he exercises more then he has in the past? 
 Option1: his muscles will become stronger 
 Option2: his muscles will become weaker 
 Explanation: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.

Answer: his muscles will become stronger


Question: Question: Everett dug down 100 feet while Jamie dug down 10 feet. Who is more likely to find old fossils? 
 Option1: Everett 
 Option2: Jamie 
 Explanation: Lower rock layers were laid down earlier, so they are assumed to contain older fossils.

Answer:
Everett