Which of the following statements are correct about the function? long fun(int num) { int i; long f=1; for(i=1; i<=num; i++) f = f * i; return f; }

• A. The function calculates the value of 1 raised to power num.
• B. The function calculates the square root of an integer
• C. The function calculates the factorial value of an integer
• D. None of above