Which sentences use nouns correctly?

Each of the sentences presented uses nouns appropriately within their contexts.

In the first sentence, "Gasoline" serves as the subject noun, clearly identifying a specific type of fuel. The term "resource" functions as a noun, indicating the value and utility of gasoline in various contexts, such as energy and transportation.

The second sentence showcases "uniforms" as the subject noun, referring to standardized clothing worn by members of an organization, while "professional" acts as an adjective that modifies the noun, providing context about the appearance of the uniforms and their significance in a professional setting.

The third sentence demonstrates correct noun usage with "lawyer," who is identified as the subject providing "advice," which acts as a noun that signifies guidance or recommendations. "Department" serves as another noun, indicating distinct areas within an organization to which the advice is directed.

Since all three sentences effectively utilize nouns in a clear and correct manner, the choice that acknowledges this is entirely justified.