Concept:Lexical words (content words) carry meaning, while function words serve grammatical structure.Explanation:Lexical words include nouns, verbs, adjectives, and adverbs. They convey real-world meaning. For example, "love" is a noun with clear meaning. Function words like "is," "the," and "might" help build sentence structure but do not have independent meaning. Among the options, only "love" is a lexical word.Answer:A. love