What will be printed after executing the following Java ?program public class DoIt { public static int doo(int a) { return a; k public static int doo () { return 0; } public static void main(String args[]) { System.out.print(doo(10)); System.out.print(doo ()); } | a. 1010 b. 100 O c. a d. 010 O What is the output when calling the following method ?(with mystery (2,4 public static void mystery(int a, int b) { int x = 1; for (int i = b; i >= a; i--) x *=i; System.out.println(x); } K ! a. 12 O b. 24 O c. 10 O d. 6 What will be printed after executing the following Java program? public class CallingMethods { public static void main(String [] args) { int x = 10; int y = 5; System.out.print(increment (x,y)); System.out.print(increment (x)); } public static int increment(int ni , int n2){ ni++; n2++; return (n1 + n2); } public static int increment(int n){ n+=2; return (n); } } Select one: O a. 1713 O b. 1712 O c. 177 O d. 1711