5. When inserting a node between adjacent nodes in a chain you must locate a. the node before the insertion position and the node after the insertion position b. the first node and the node before the insertion position c. the first node and the node after the insertion position d. the last node and the node after the insertion position 6. Adding a node at the end of a chain of n nodes is the same as adding a node at position a. n + 1 b. n C. n-1 d. 0