Answer : Option B
Syntax: void *malloc(size_t size);
The malloc() function shall allocate unused space for an object whose size in bytes is specified
by size and whose value is unspecified.
The order and contiguity of storage allocated by successive calls to malloc() is unspecified.
The pointer returned if the allocation succeeds shall be suitably aligned so that it may be
assigned to a pointer to any type of object and then used to access such an object in the space
allocated (until the space is explicitly freed or reallocated). Each such allocation shall yield a
pointer to an object disjoint from any other object. The pointer returned points to the start (lowest
byte address) of the allocated space. If the space cannot be allocated, a null pointer shall be
returned. If the size of the space requested is 0, the behavior is implementation-defined: the
value returned shall be either a null pointer or a unique pointer.