Assume that the node of a linked list is in the usual info-link form with the info of type int. (list and ptr are pointers of type nodeType.) The following code creates a linked list: ptr = new nodeType: ptr rightarrow info = 16: list = new nodeType: list rightarrow info = 25: list rightarrow link = ptr: ptr = new nodeType: ptr rightarrow info = 12: ptr rightarrow link = nullptr: list rightarrow link rightarrow link = ptr: Use the linked list created by this code to answer the following questions. (These questions are independent of each other.) Declare additional pointers if you need them. a. Which pointer points to the first node of the linked list? b. Determine the order of the nodes of the linked list. c. Write a C++ code that creates and inserts a node with info 45 after the node with info 16. d. Write a C++ code that creates and inserts a node with info 58 before the node with info 25. Does this require you to the change the value of the pointer that was po