What does a modification achieve in a sentence?

A modification in a sentence is a word, phrase, or clause that provides additional information about a noun or pronoun, helping to describe or qualify it. This descriptive function enhances the meaning of the sentence by adding details that clarify or specify which noun is being referred to. For example, in the phrase "the tall building," the adjective "tall" modifies the noun "building" by providing a specific quality that distinguishes it from other buildings. This foundational aspect of modifications makes option C the correct choice, as it directly addresses the role of modifications in enhancing the description of nouns within a sentence.