Among 4 header files, which should be included to use the memory allocation functions like malloc(), calloc(), realloc() and free()?

Among 4 header files, which should be included to use the memory alloc

1.	Among 4 header files, which should be included to use the memory allocation functions like malloc(), calloc(), realloc() and free()?
A.	#include<string.h>
B.	#include<stdlib.h>
C.	#include<memory.h>
D.	Both b and c
Answer» C. #include<memory.h>