provide explaination

Given the following recursively implemented sorting algorithm, RecSort(int[] A, int n), which takes as input an unsorted array A of n integers and returns an array with the elements of the array A sorted in ascending order. The pseudocode of the RecSort(int[] A, int n) is as follow: RecSort(int . A, int n) if n = 1 then Return A[0] m = A[0] index = 0 for i = 1 ton-1 if A[i]