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In which condition this prgram will print the string "google"?

#include<stdio.h>
#include<stdlib.h>

int main()
{
int ptr;
ptr = (int )malloc(sizeof(int)*10);
if (ptr == NULL)
printf("googlen");
return 0;
}
a) if the memory could not be allocated to the pointer "ptr"
b) if the memory has been allocated to the pointer "ptr" successfully
c) it will never print
d) none of the mentioned

a) if the memory could not be allocated to the pointer "ptr"
Explanation:
The malloc() returns NULL when the memory is not allocated.

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Program given below will allocate the memory of ___ bytes for pointer "ptr". #include<stdio.h> #include<stdlib.h> int main() { int ptr; ptr = (int)malloc(sizeof(int)4); ptr = realloc(ptr,sizeof(int)2); return 0; } a) 2 b) 4 c) 8 d) none of the mentioned	What is the output of this program? #include<stdio.h> #include<stdlib.h> int main() { int ret; int ptr; ptr = (int )malloc(sizeof(int)*10); free(ptr); free(ptr); return 0; } a) it will print nothing b) it will give segmentaion fault c) undefined behaviour d) none of the mentioned