C Pointers Question:

In which header file is the NULL macro defined?

A. stdio.h
B. stddef.h
C. stdio.h and stddef.h
D. math.h

Option C
(stdio.h and stddef.h)

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Can you combine the following two statements into one? char p; p = (char) malloc(100); A. char p = malloc(100); B. char p = (char) malloc(100); C. char p = (char)malloc(100); D. char p = (char )(malloc*)(100);	How many bytes are occupied by near, far and huge pointers (DOS)? A. near=2 far=4 huge=4 B. near=4 far=8 huge=8 C. near=2 far=4 huge=8 D. near=4 far=4 huge=8