Point out the error in the following program. #include #include fun(...); int main() { fun(3, 7, -11.2, 0.66); return 0; } fun(...) { va_list ptr; int num; va_start(ptr, n); num = va_arg(ptr, int); printf("%d", num); }

• A. Error: fun() needs return type
• B. Error: ptr Lvalue required
• C. Error: Invalid declaration of fun(...)
• D. No error