okay so sorry i couldn't get it i need more information.
Answer:
bye. interjection. Definition of bye (Entry 2 of 2) —used as a shortened form of goodbye to express farewell When he finally spoke, though, and said, "Bye, I'll call you," instead of disappointment she had felt an enormous rush of relief—a feeling, she thinks now, of things falling back into place.—
D.
Because 4 divided by 2 is 2