Instructions: You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.
Input: Question: Bob can eat 27 chocolates in an hour. Alice can eat 2 chocolates in 10 minutes, and Kelly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a large box of 120 chocolates whilst watching a movie?

Option A: 2 hrs

Option B: 1 hrs

Option C: 3 hrs

Option D: 4 hrs

Option E: 6 hrs
Output:
Option A