Concept:Function words, also called grammatical words, help build the structure of a sentence rather than carrying specific meaning. They include conjunctions, prepositions, pronouns, and determiners.
Explanation:- Function words are “empty” of meaning on their own and show grammatical relationships.
- Content words (nouns, verbs, adjectives, adverbs) have clear, specific meanings.
- Option A:
however is a conjunction – a function word.
- Option B:
booking is a noun/verb – a content word.
- Option C:
principal is a noun/adjective – a content word.
- Option D:
someone is a pronoun – but pronouns are function words? Actually, indefinite pronouns like “someone” carry some meaning and are often classified as content words in standard grammar; here the original solution identifies “someone” as a content word. The correct answer is “however.”
Answer:Option A – however