His credulous nature often landed him in trouble. What does credulous mean over here?

Explanation

Credulous means being very naive, gullible, and innocent hence, having or showing too great a readiness to believe things. The correct meaning of "credulous" in the given context is option D) "Willing to believe easily." When describing someone as credulous, it means that they are prone to accepting things as true without questioning or doubting them. Consequently, their trusting and gullible nature can lead them into difficulties or problematic situations.