‘Loquacious’ means:

The word 'loquacious' describes someone who is very talkative or tends to talk a great deal. We need to find a synonym among the given options. Option (D) 'garrulous' perfectly matches this definition, meaning excessively talkative, especially on trivial matters. Therefore, 'garrulous' is the correct answer as it is a direct synonym for 'loquacious'. Option (A) 'Taciturn' is an antonym, meaning reserved or saying little, which is the opposite of loquacious. Option (B) 'Rational' refers to being logical or reasonable, which is unrelated to the quantity of speech. Option (C) 'Spirited' means full of energy and enthusiasm, also not related to being talkative. Understanding synonyms and antonyms is crucial for vocabulary questions.