The windows of the car are dirty?

Common nouns identify people, things, or places in general.

Common noun are not captalized.

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

Choice A is incorrect. Though "table" is a common noun "dirty" is not a noun; it is an adjective that describes the window. Nouns are names of people, places, things, or ideas, like "dog" or "tree". Adjectives describe nouns by giving more information about them, like "big" or "red".

window, dirty

Choice B is incorrect. "Car" is a common noun, but "dirty" is an adjective, not a noun. Common nouns name general things, while adjectives describe them.

car, dirty

Choice C is correct. "Windows" and "car" are common nouns because they are names for general things, not specific ones. Common nouns are words we use for ordinary objects, like any window or any car, not one specific window or car.

windows, car

Choice D is incorrect because "of" and "the" are not common nouns; they are called prepositions and articles, respectively. Common nouns are names for people, places, or things, like "dog" or "tree".

of, the

Nouns in the given sentence - windows, car

Common nouns in the given sentence - windows, car

Choice C

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