In generative grammar, the tree structure is used to describe phrases in terms of which parts?

• A. Constituent grammatical parts
• B. Phonetic features
• C. Lexical choices
• D. Semantic fields

Answer: (A)

The tree structure in generative grammar shows how words group into larger units called constituents. Each node represents a constituent, such as a noun phrase, verb phrase, or prepositional phrase, illustrating how smaller parts combine to form bigger, meaningful units. For example, a noun phrase like “the quick brown fox” is built from a determiner, adjectives, and a noun, all grouped together as one unit in the tree. This focus on hierarchical grouping of syntactic units is what the tree captures.

Phonetic features, lexical choices, and semantic fields aren’t what the tree primarily represents. Phonetic features relate to sounds, lexical choices to which words are used, and semantic fields to meaning domains. The tree’s purpose is to map how phrases are assembled from syntactic constituents, not to describe sounds, word choice, or meaning domains.