Answer:
Correct Answer:
was trained as a sailor through his long service to Italy.
Step-by-step explanation:
Christopher Columbus was an Italian explorer and navigator who completed four voyages across the Atlantic Ocean thereby opening the way for European exploration and colonization of the Americas.
He took to sea at the age of 10 and engaged in various expeditions and trades with other seafarers. Later in his adult year and following persistent lobbying, Queen Isabella I and King Ferdinand II agreed to sponsor his voyage towards west, in the name of the Crown of Castile.