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

Answer: Option B

n²(n² - 1)
put n = 2
= 2²(2² - 1)
= 4(4 - 1)
= 4 × 3
= 12
Check the option it is divisible by 12.
$$\begin{array}{rl}& \text{Take n = 3}\\ & \Rightarrow {\text{3}}^3\left(3^3-1\right)\\ & \Rightarrow 9\left(9-1\right)\\ & \Rightarrow 9\times 8=72\\ & \text{It is divisible by 12}\\ & \text{So 12 is answer}\end{array}$$