Cloth : Mill :: Newspaper : ?

The correct answer is: Press.

A mill is a building where cloth is made. A press is a machine that is used to print newspapers.

Option A, editor, is incorrect because an editor is a person who is responsible for the content of a newspaper.

Option B, reader, is incorrect because a reader is a person who reads a newspaper.

Option C, paper, is incorrect because paper is the material that a newspaper is made of.

Option D, press, is the correct answer because a press is a machine that is used to print newspapers.