What is an adjective designed to modify?

An adjective is specifically designed to modify a noun. This means that it provides additional information about the noun, such as its qualities, quantity, or characteristics. For example, in the phrase "the red balloon," the adjective "red" gives a specific detail about the noun "balloon," describing its color. Adjectives help to create clearer imagery in writing and enhance the reader's understanding of the noun being described.

In contrast, verbs, adverbs, and prepositions serve different functions in sentences. Verbs indicate actions or states of being, adverbs modify verbs (or adjectives and other adverbs), and prepositions show relationships between nouns or pronouns and other words in a sentence. Thus, the unique role of adjectives as modifiers of nouns is what makes the correct answer clear.