Select the sentence that uses possessive forms correctly.
in the play, i wore my mothers wig and my grandmothers shoes, but my two sisters clothes were too modern for the part.
in the play, i wore my mother's wig and my grandmother's shoes, but my two sisters' clothes were too modern for the part.
in the play, i wore my mothers' wig and my grandmothers' shoes, but my two sister's clothes were too modern for the part.

In the play, I wore my mother's wig and my grandmother's shoes, but my two sisters' clothes were too modern for the part.

Explanation:

This form is considering people, groups of people(In this case), animals, and more.

In this sentence possessive forms are: mother's(singular), grandmother's(singular) and sisters'(plural).  

in this passage from chapter 6 of "animal farm", by george orwell, what the author is ridiculing in this passage is the frivolity of some rules.

clover, the mare, believes she remembers that the fourth commandment forbade sleeping in beds because it was something that humans did. snowball, napoleon, and the pigs are brain-workers who look after the welfare of the farm. they are the obvious leaders because they are smart, and so they are entitled to eat the best food and sleep in beds. it is squealer, who says these lines making the difference between sleeping with sheets, what humans do, and sleeping in beds, what pigs do. the unwillingness to question authority makes the oppressed to obey without thinking.

i think the answer might compound