(3) Consider a list of n numbers. The numbers are a random permutation of the first n natural numbers. As an example if n = 2, we have 2 possible permutations in list form (1, 2) and (2,1). If n = 3 we have 6 possible permutations as listed below. (1,2,3) (1,3,2) (2,1,3) (2,3,1) (3,1,2) (3,2,1) How many possible permutations will we have when n = 5? (4) Which of the below is not considered a primitive data type in C++ (a) int coordinate = 0; (b) struct coordinate { int x = 0; int y = 0; int x = 0; } char alphabet [26]