find the output

what will be the output of the following code 

	#include <stdio.h>
	int main(void) {
	int x=100;char y=3;float z=3.12;
	int *xp=&x;char *yp=&y;float *zp=&z;
	printf("%d\t%d\t%d\t%d\t%d\n",sizeof(NULL),sizeof(xp),sizeof(yp),sizeof(zp),sizeof("clu"));
	return 0;
	}

view raw szp.c hosted with ❤ by GitHub

output will be 
8  8  8  4
size of a pointer to any data type is type independent , size of pointer depends on your machine address bus.
sizeof("clu")  here "clu" is treated as array of characters ={'c','l','u','\0'}
so sizeof("clu") is 4 bytes