Which trait does Gulliver possess based on his background as a surgeon?

Gulliver's background as a surgeon indeed suggests a high degree of intelligence. Surgeons require extensive education and training to understand complex medical principles and to perform intricate procedures successfully. This background indicates that Gulliver possesses both theoretical knowledge and practical skills, which are crucial in medicine. His ability to navigate various cultures and situations in his travels also reflects an adaptable intelligence, allowing him to analyze and interpret the societies he encounters.

In contrast, while courage is certainly a quality that could be ascribed to someone in his profession, it is not exclusively linked to his role as a surgeon. Wealth is also not a defining trait of Gulliver; while he may attain some level of prosperity through his profession, it does not encompass the core of his identity or abilities. Additionally, humor, while present in Swift's narrative, is more a reflection of the author's style and the satirical nature of the story rather than a characteristic inherent to Gulliver's surgical background. Therefore, intelligence stands out as the most fitting trait derived from his profession.