What will be the output of given set of code? static void main(string[] args) { int i; int res = fun (out i); console.writeline(res); console.readline(); } static int fun(out int i) { int s = 1; i = 7; for (int j = 1; j <= i; j++ ) s = s * j; return s; }

• A. 4490
• B. 5040
• C. 5400
• D. 3500