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: Fred has an isotope that decays quickly. What is likely true about it? 
 Option1: it can be used to date older specimens 
 Option2: it can't be used to date old specimens 
 Explanation: Because these isotopes decay more slowly, they can be used to date much older specimens.

Answer: it can't be used to date old specimens


Question: Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has more friction? 
 Option1: sandpaper 
 Option2: notebook paper 
 Explanation: Rougher surfaces have more friction between them than smoother surfaces.

Answer: sandpaper


Question: Question: Jeff increases the waves' crests' height in the simulation. The amplitude is now 
 Option1: higher 
 Option2: lower 
 Explanation: The higher the crests are, the greater the amplitude of the wave.

Answer:
higher