What is the effect of the following statement? If a statement is invalid, explain why it is invalid [closed]

1.What is the effect of the following statement? If a statement is invalid, explain why it is invalid. The classes queueADT, queueADT, and linkedQueueType are as defined in this chapter. a) queueADT newQueue; b) queueType sales(-10); c) queueType names; d) linkedQueueType numQueue(50);****