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 Input:
Question: If Mona is exploring different continents and she notices that Africa is cooler then North America, which continent will have more types of vegetation? 
 Option1: North America 
 Option2: Africa 
 Explanation: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.

Ex Output:
North America


Ex Input:
Question: Clare stopped rubbing two sticks together. The sticks became 
 Option1: hot 
 Option2: cold 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more heat energy.

Ex Output:
cold


Ex Input:
Question: If Bob starts exercising, his heart muscle should become 
 Option1: stronger 
 Option2: weaker 
 Explanation: When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.

Ex Output:

stronger