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.
Input: Question: If Mona adds more carbon atoms to her alkane, what happens to the boiling point of that alkane? 
 Option1: increases 
 Option2: decreases 
 Explanation: Alkanes with more carbon atoms generally have higher boiling and melting points.
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
increases