Final answer:
In C programming, the ContactNode struct is defined to create a linked list with data members for the contact's name, phone number, and a pointer to the next node.
Step-by-step explanation:
The student's question involves defining a struct in the C programming language for a linked list. The struct, named ContactNode, will include the following data members: contactName[], contactPhoneNumber[], and a pointer to the next ContactNode, nextNodePtr. Here’s how the ContactNode can be defined:
typedef struct ContactNode {
char contactName[50];
char contactPhoneNumber[15];
struct ContactNode* nextNodePtr;
} ContactNode;
To use this struct, you would initialize and link ContactNodes in the linked list, keeping track of the head node which represents the start of the list.