Assume a 64 bit system, where the sizeof (int) is 4 bytes, and sizeof (float) is also 4 bytes The following questions refer to the code below: void* g (int x) union merged int x; float y static int counter-0; ++count; union merged* ptr-malloc (sizeof (merged)) if (ptr) return NULL; ptr-x-x; return ptr; (a) What is the sizeof (union merged)? b) Which variables are allocated on the stack, which variables are allocated on the heap and which variables are allocated in the static storage area? (c) What are the lifetimes of each of the variables listed above