Four accounting majors, two economics majors, and 3 marketing majors have interviewed for 5 different positions with the large company. Find out the number of different ways that five of these could be hired.
Instead of 5 positions, the company has decided that only 3 positions, with no restriction on college majors, should be filled ______.
A) 24 ways
B) 2520 ways
C) 6 ways
D) 504 ways