TASK DEFINITION: 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.
PROBLEM: Question: When we look deep into the earth through a volcano the temperature 
 Option1: decreases 
 Option2: increases 
 Explanation: As the rocks move deeper into the Earth, temperature and pressure increase.

SOLUTION: increases

PROBLEM: Question: Ollie was running for 20 minutes while Jim was standing for 20 minutes. Which person likely has temporarily engorged blood vessels? 
 Option1: Jim 
 Option2: Ollie 
 Explanation: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

SOLUTION: Ollie

PROBLEM: Question: If Milo adds more carbon atoms to his alkane while working in his science lab, what happens to the melting point of that alkane? 
 Option1: increases 
 Option2: decreases 
 Explanation: Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature.

SOLUTION:
increases