What is the output after calling the following function on the following double linked list? Assume the pointer current already exists. doSomething(current, -3) Null X 254 +6=8 = 10 = 12 Null X current void doSomething (Node*current, int n) { if (N > 0) { while (current->next != NULL && N > 0) { current = current->next; N--; } } else if (N prev != NULL && Nprev; N++; Select one: a. The current becomes on the node with data 2 b. The current becomes on the node with data 4 C. The current becomes on the node with data NULL d. The current becomes NULL pointer