Which one of the following sentences uses apostrophes incorrectly in possessive forms?

Question

Quizplus · Accepted Answer

In English, the possessive form of singular nouns is made by adding 's, regardless of whether the noun ends in s or not (e.g., "the hamster's cage," "my father's chin"). For plural nouns that already end in s, only an apostrophe is added after the s (e.g., "the girls' bathroom"). The sentence in choice C incorrectly adds 's to a plural noun ending in s ("boys's"), which should simply be "boys' families."

Which One of the Following Sentences Uses Apostrophes Incorrectly in Possessive