What will be the output of the following C code?#include <stdio.h>#include <stdarg.h> int fun(char ch, ...); int main() { char ch1 = 99, ch2 = 100; fun(ch1, ch2); return 0; } int fun(char ch, ...) { va_list list; va_start(list, ch1); char ch2 = va_arg(list, char); printf("%c n", ch2); va_end(list); }

• A. c
• B. Compilation Error
• C. d
• D. Undefined behaviour
• E. None of these