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: Let the number which when multiplied by 15 is increased by 280.

 Option A: 14

 Option B: 20

 Option C: 26

 Option D: 28

 Option E: 30

Option B