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: How much time will it take for an amount of 450 to yield 81 as interest at 4.5% per annum of simple interest?

 Option A: 3 years

 Option B: 4 years

 Option C: 6 years

 Option D: 5 years

 Option E: 7 years

Option B