Using the textbook's implementation of a linked list, which of the following statements about changing the data stored in a previously visited element is correct?

The position.next reference must be updated when the data is updated.

The previous reference must be updated when the node is updated.

The node that will be updated is the most recently visited node.

The set method can be called again immediately after calling the add method.

Using the textbook's implementation of a linked list, which of the following statements about managing nodes within a linked list using an iterator is correct?

The node that will be removed is the node pointed to by the position.next reference.

The set method can be called immediately after adding a new node using the add method.

The position reference must be updated when a new node is added.

The set method can be called immediately after removing an existing node using the remove method.