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: 1397 x 1397 = ?

 Option A: 1951000

 Option B: 1951500

 Option C: 1951509

 Option D: 1951511

 Option E: 1951609

Option E