Study for the SAT Vocabulary 2025 Test. Master vocabulary with flashcards and questions, each with detailed explanations. Get ready for your exam!

A "credulous" person is characterized by a tendency to be overly trusting and often gullible. This means they are inclined to believe things too readily without questioning or critically evaluating the information presented to them. A credulous individual might accept claims or assertions without sufficient evidence, making them susceptible to deception or misjudgment.

In contrast, a highly critical and discerning person is usually skeptical and analyzes the information before accepting it, which is not consistent with being credulous. Similarly, a realistic and down-to-earth individual tends to maintain a practical and sensible outlook, typically questioning things rather than accepting them at face value. Lastly, those who are cautious and skeptical actively seek evidence and are hesitant to trust unverifiable information, which directly opposes the nature of a credulous person. Therefore, option B accurately captures the essence of being credulous, highlighting the tendency towards excessive trust.