Which of the Following Actions Must Be Taken to Add

Multiple Choice

Which of the following actions must be taken to add a node X at the end of a doubly-linked list?
i.Update the next reference in the node before the position where X will be placed
II.Update the previous reference in the node before the position where X will be placed
III.Update the list's last reference

A) I
B) II
C) I and II
D) I and III