What is the primary occupation of Lemuel Gulliver?

Lemuel Gulliver's primary occupation as a surgeon and sea captain is central to his character and the narrative of "Gulliver's Travels." As a surgeon, Gulliver possesses medical knowledge and skills that enable him to assist others throughout his journeys, reflecting the importance of his profession in various encounters. His role as a sea captain is equally significant, as it contextualizes his travels across different lands and encounters with various cultures, such as the Lilliputians and Brobdingnagians. This dual occupation sets the stage for many of the adventures he experiences and highlights themes of exploration and the examination of society, human nature, and the consequences of arrogance and imperialism. The options focusing on navigator, trader, sailor, merchant, doctor, or explorer do not fully encompass the depth and specificity of Gulliver's character as well as the combination presented in the correct answer.