In how many ways can one select 3 different integers ranging from 1 to 30 inclusive so that their sum is a multiple of 3 (order of selection does not matter)?

(A) 3160

(B) 1360

(C) 1240

(D) 1353

(E) 3240

I don't know where to begin with this one, yeah... I'm pretty much stumped. :confused: