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 many words can be formed by using all letters of the word “MANFUL”

 Option A: 720

 Option B: 240

 Option C: 750

 Option D: 860

 Option E: 140

Option A