Assume You Have Two Integer Variables, Num1 and Num2

Multiple Choice

Assume you have two integer variables, num1 and num2. Which of the following is the correct way to swap the values in these two variables?

A) int temp = num1;
Num2 = num1;
Num1 = num2;
B) int temp = num2;
Num2 = num1;
Num1 = temp;
C) num1 = num2;
Num2 = num1;
D) int temp = num1;
Num2 = temp;
Temp = num2;
Num1 = temp;
E) None of these