Read the following sentence and choose the correction in apostrophe use, if any. the newspapers witnesses told conflicting accounts of the event.

The apostrophe should be placed right after the final -s in "newspapers".

Explanation:

The apostrophe is used to show possession. With singular nouns, you should add an apostrophe plus the letter -s (see 1). With plural nouns, you should only add an apostrophe after the -s (see 2).  In the sentence above, the plural noun "newspapers" lacks the apostrophe, so the possession relationship between newspapers and witnesses is not grammatically shown.

1) A woman's dress

2) Guys' night out