What will be the output of the following C++ code?

#include<stdio.h>
int main(int argc, char const *argv[])
{
	char a = 'a';
	printf("%d\n", (int)sizeof(a));
	return 0;
}

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