The____(windows) glasses were shattered.

Possessive noun indicates ownership.

Plural possessive nouns end with an apostrophe "s" to the word.To form the possessive of plural noun that ends in -s, add an apostrophe (') to the end of the word. To form the possessive of a plural, the noun that does not end in -s, add an apostrophe (') and -s

Can you summarize what you’ve understood in the above steps?

Choice A is incorrect. "Window" is a singular noun, meaning one window. To make it plural, we add an "s" to make it "windows." When something belongs to the window, like its glass, we add an apostrophe and an "s" to make it possessive, like "window’s glass."

window

Choice B is incorrect because "window’s" shows possession, but it’s not plural. Instead, it should say windows' to show that something belongs to more than one window.

window’s

Choice C is correct. Windows' is a plural possessive noun because it shows more than one window (plural), and the apostrophe shows that something belongs to the windows. So, it’s like saying the windows own something or have something, like "the windows' glasses" means the glasses belongs to the windows.

windows'

Choice D is incorrect. "Windows" is plural, meaning it refers to more than one window. For possession, like owning something, we add an apostrophe and an "s" to the end of a singular noun. So, it should be "window’s" to show that one window owns something, not "windows."

windows

Word given in the parentheses - windows

Plural possessive noun for the given word - windows'

Complete sentence - The windows' glasses were shattered.

Choice C

Can you summarize what you’ve understood in the above steps?