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.

Question: A man buys an article and sells it at a profit of 20%. If he had bought it at 20% less and sold it for Rs.90 less, he could have gained 25%. What is the cost price?

 Option A: 372

 Option B: 375

 Option C: 278

 Option D: 267

 Option E: 450
Option E