Answer:
The exploration that was sponsored by King Ferdinand and Queen Isabella of Spain was Christopher Columbus' voyage to Hispaniola.
Step-by-step explanation:
Christopher Columbus was a navigator, cartographer, admiral, viceroy and governor general of the West Indies in the service of the Crown of Castile, in charge of the Kings Ferdinand and Isabella. He is famous for having made the discovery of the Americas, on October 12, 1492, upon arriving at Guanahani Island, currently in the Bahamas.
He made four trips to the Indies - denomination of the American continent until the publication of the Martin Waldseemüller Planisphere in 1507 - and although he was possibly not the first European explorer of America, he is considered the discoverer of a new continent - that is why he called it the New World - for Europe, being the first to draw a round trip route across the Atlantic Ocean and made the news known. This fact decisively drove the worldwide expansion of European civilization, as well as the conquest and colonization by several of its powers in the American continent.