Which of the following describes the difference between a secure cipher and a secure hash?

Which of the following describes the difference between a secure cipher and a secure hash?

A.
A hash produces a variable output for any input size, a cipher does not.

B.
A cipher produces the same size output for any input size, a hash does not.

C.
A cipher can be reversed, a hash cannot.

D.
A hash can be reversed, a cipher cannot.