Consider the C code fragment given below.

typedef struct node
{
int data;
node* next ;
} node;

void join(node* m, node* n)
{
node* p = n;
while (p->next != NULL)
{
p = p->next;
}
p–>next = m;
}


Assuming that m and n point to valid NULL- terminated linked lists, invocation of join will