Answer:
b. leading the first expedition to circumnavigate the globe
Step-by-step explanation:
Ferdinand Magellan was a Portuguese navigator who, in the service of the king of Spain, commanded the maritime expedition that carried out the first sea voyage around the globe.
He was the first navigator to reach Tierra del Fuego in the extreme south of the American continent, crossed the Strait of Magellan and crossed the Pacific Ocean, which he named in this way, for its calm waters.