Which of the following would be an example of a C2C business?

Suppose there is no count variable stored for the linked implementation of a queue. Is it still possible to implement a constant time size operation? How about if there is no count variable stored for an array based implementation of a queue?

What will be an ideal response?

_______ scams use email to try and trick you into revealing personal information, usually on the pretense of being your bank.

A. Phishing B. Cookie C. Spyware D. Adware