Choose the correct articles

An/the is correct with an for elderly (vowel sound) and the for beach (specific place). This question tests article usage knowledge. Articles define noun specificity with a/an for indefinite and the for definite. An/a is incorrect as beach is specific. A/a fails as elderly starts with a vowel sound. Understanding articles ensures grammatical accuracy in sentences. Correct usage clarifies whether nouns are specific or general vital for clear communication. Articles are foundational in English grammar affecting readability in writing or speech across academic professional or casual contexts.