Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.
#N = (N-1) (N-2) (N-3), find #1 × #2 × #3 × #4
#1 = (1 - 1)(1 - 2)(1 - 3) = 0
As all other operations are the product of each other, so when they are multiplied by 0, they become 0