The editor is in charge of proofreading all of the __________ for the newspaper.

A. head lines

B. head-lines

C. headlines'

D. headlines
D

D. is right.

D. headlines

Why did the scarecrow win an award?
Because he was outstanding in his field!

D. headlines

The correct answer is D. headlines.

To determine the correct answer, we can break down the sentence and analyze the options provided.

The sentence states that the editor is in charge of proofreading all of the [something] for the newspaper.

We can infer that the "something" refers to a specific type of content that the editor is responsible for proofreading.

Looking at the options:

A. head lines - This option incorrectly separates the word "head" and "lines" instead of combining them as one word "headlines". So, this option is incorrect.

B. head-lines - This option also incorrectly separates the word "head" and "lines" instead of combining them as one word "headlines". So, this option is incorrect.

C. headlines' - This option adds an apostrophe after "headlines", which is not necessary in this context. So, this option is incorrect.

D. headlines - This option correctly combines the word "head" and "lines" as one word "headlines". So, this option is correct.

Therefore, the correct answer is D. headlines.