please explain the reasons for these answers.

public class parameters public static void m(int a, int b) int temp; temp = a; b-temp public static void main (String[] args) [ int a = 1; int b 2; m (a, b); System.out.println(a ", "+ b) (A)1.1 (B) 2, 2 |(C) 1 (D)2,1 (2 marks) Consider the following queue implemented using a circular array rearfront 0 234 Which code fragment correctly implements the dequeue operation on this particular queue? The name of the array storing the data items in the queue is arrQueue (A) r arrQueue [front); front = front + 1; count-; return r; (B) r-arrQueue [rear]; rear - rear 1; count-return r; (C) r-arrQueue [front); front- (front + 1) % arrQueue. length; count-_; return r; (D) r- ar rQueue [front); rear- (rear + 1) % arrQueue . length; count-, return r; (E) r = arrQueue [front]; front = (front - 1) % arrQueuelength; count--. return n