If each digit in the set A = {1, 2, 3, 4, 5, 6} is used exactly once, in how many ways can the digits be arranged?
Pick:  A) 720  B) 830  C) 940  D) 1050  E) 1160
6! = 720   The answer is 720.
<result>A</result>
If each digit in the set A = {1, 2, 3, 4, 5, 6} is used exactly once, in how many ways can the digits be arranged?