Which of the following statements is true and which are false?

Question 3: When using malloc 0 , calloc 0 or realloc 0 : - we are always guaranteed to obtain from the stack the amount of memory we request. - we are always guaranteed to obtain from the heap the amount of memory we request. - we must always specify the amount of memory requested, possibly in an expression involving the sizeofO macro. - the memory allocated in one module cannot ever be accessed by code in another module. None of the above