Consider the following three C functions : [PI] int * g (void) { int x= 10; return (&x); } [P2] int * g (void) { int * px; *px= 10; return px; } [P3] int *g (void) { int *px; px = (int *) malloc (sizeof(int)); *px= 10; return px; } Which of the above three functions are likely to cause problems with pointers?

Consider the following three C functions : [PI] int * g (void) { int

1.	Consider the following three C functions : [PI] int * g (void) { int x= 10; return (&x); } [P2] int * g (void) { int * px; px= 10; return px; } [P3] int g (void) { int px; px = (int ) malloc (sizeof(int)); *px= 10; return px; } Which of the above three functions are likely to cause problems with pointers?
A.	Only P3
B.	Only P1 and P3
C.	Only P1 and P2
D.	P1, P2 and P3
Answer» D. P1, P2 and P3