7. Consider a Circular singly linked list where last is a pointer to the last node of the linked list. Which of the following operations takes more amount of time to perform the function, considering...

Extracted text: 7. Consider a Circular singly linked list where last is a pointer to the last node of the linked list. Which of the following operations takes more amount of time to perform the function, considering the length of the list? Exchange the first two elements of the list. Remove the first element of the list Remove the last element of the list Insert an element at the end of the list