Definition: 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: Which of the following is closest to 1/8+1/88+1/888

 Option A: 1/8

 Option B: 1/2.5

 Option C: 1/5

 Option D: 1/7.3

 Option E: 1/9

Option D