Problem Solving - Q

What is the best way to solve the Question below, is it by testing numbers or is there any other approach that can be tried, please suggest and explain the approach. Thanks Q ) If n is an integer greater than 6, which of the following must be divisible by 3? A) n(n+1)(n-4) B) n(n+2)(n-1) C) n(n+3)(n...