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.

[Q]: Question: Wendy is 30 years old while Jefferson is 60 years old. Who is more susceptible to disease? 
 Option1: Wendy 
 Option2: Jefferson 
 Explanation: Many diseases become more common as people grow older.
[A]: Jefferson


[Q]: Question: The air gets thicker when it is 
 Option1: hot 
 Option2: cold 
 Explanation: Increasing air temperature decreases atmospheric pressure.
[A]: cold


[Q]: Question: If one does no aerobic exercises, their heart muscles will become 
 Option1: stronger 
 Option2: weaker 
 Explanation: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.
[A]:
weaker