What happens if the following program is executed in C and C++?

#include <stdio.h> 
void main() 
{ 
	printf("Hello World"); 
}

A. .cpp B. .cc C. .cxx D. .c

A. char B. float C. boolean D. double

A. File output stream B. File input stream C. Standard output stream D. Standard input stream

A. struct B. interface C. class D. object