Question 6 (1 point) When the following code snippet is executed, what will be the output? public void test20) { int a = 1; int b = 2; int c; int d; C = ++b; d = a++; C++; 11 + a); System.out.println("a = System.out.print("b = " + b); System.out.println("c = " + c): System.out.print("d = " + d); } a = 2 b = 3c = 4 d = 1 O a = 2 b = 3 C = 4 d = 1 The program does not compile. a = 1 b = 2 C = 4 d = 2