Which phrase is correctly punctuated? 1. two girls cats 2. two girls cats 3. two girl's cats 4. two girls' cats '

Answer:
4 is correct
Explanation:
Two girls' cats
The girls have possession of the cats so you need to put an apostrophe after girls BUT there is already an S on the end of girls, so you don't add apostrophe S, just an apostrophe.