Which adjective indicates a person who is talkative and fond of talking?

The adjective "loquacious" specifically describes a person who is very talkative and enjoys engaging in conversation. This term is often used to convey a sense of excessive talkativeness, indicating someone who tends to speak at length on various topics. In contexts where communication and expression are valued, a loquacious individual might be seen as friendly and engaging, often dominating discussions with their verbal contributions.

In contrast, the other choices represent characteristics opposite to being talkative. "Reserved" refers to someone who is self-restrained and may not readily express their thoughts or feelings through conversation. "Taciturn" describes a person who is habitually silent or uncommunicative, often choosing to speak very little. "Quiet" can describe a person who is not loud but does not necessarily imply talkativeness or reticence; it can simply denote someone who prefers not to speak much.

The clear distinction of "loquacious" lies in its direct association with a person's inclination to talk a lot, making it the correct choice in this context.