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: Mona is excavating a deep tunnel as part of an exploratory committee. As she travels upwards back from the Earth, what can she expect will happen to the temperature? 
 Option1: increase 
 Option2: decrease 
 Explanation: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.

Ex Output:
decrease


Ex Input:
Question: Joseph began sanding the plank faster and faster, increasing the friction on the rubbing surface. As he does so, the heat energy 
 Option1: increases 
 Option2: decreases. 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more heat energy.

Ex Output:
increases


Ex Input:
Question: Tom conducted an archaeological dig and compared some of the rocks he found. He noticed that the rocks at 2 feet deep were _____ than the rocks at 20 feet deep. 
 Option1: older 
 Option2: younger 
 Explanation: Older rocks are at the bottom and younger rocks are at the top.

Ex Output:

younger