If n is a whole number greater than 1, then n2 (n2 - 1) is always divisible by :

Answer: Option C

Let N = n² (n² - 1) = n² (n - 1) (n + 1)
Then, n = 2
⇒ N = 2² × (2 - 1) (2 + 1)
        = (4 × 1 × 3) = 12
Hence, the required number is 12