Final answer:
The statement that plural nouns not ending in -s only require an additional 's' to form the possessive case is true. (option a )Examples include men's, children's, and women's.
Step-by-step explanation:
The question posed concerns the possessive form of nouns that are already plural. The statement to be evaluated is whether plural nouns only require an additional 's' (apostrophe followed by an s), such as in men's, children's, and women's. To answer this, we look at the rules of English grammar concerning the formation of possessive nouns. For plural forms that do not end in -s, such as the examples provided, the correct possessive form is indeed created by adding 's to the end (children's games, people's opinion).
However, for plural nouns that already end in -s, only an apostrophe is added to the end (ex. the three friends' cars, the workers' benefits). The correct answer to the statement is A. True. When plural nouns do not end with the letter -s, like men, children, and women, they require an apostrophe followed by s to form the possessive.