Question: Consider the following reference variable for a QLink object. QLink x = head.nextNode.nextNode.nextNode; Which of the following if statements tests whether the node referenced by

Consider the following reference variable for a QLink object. QLink x = head.nextNode.nextNode.nextNode; Which of the following if statements tests whether the node

Consider the following reference variable for a QLink object. QLink x = head.nextNode.nextNode.nextNode; Which of the following if statements tests whether the node referenced by x is the tail node in the linked list? a. if (x.nextNode == null) b. if (x. nextNode = null) c. if (x.nextNode.length ==0) d. if (x.nextNode != head) e. if ( x.nodeVal == 0)

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