The explorers who motivated the explorations of Balboa and Magellan are best represented by the option: Christopher Columbus, Giovanni Caboto, and Amerigo Vespucci.
- Christopher Columbus's voyages opened the door to the exploration of the Americas.
- Giovanni Caboto (John Cabot) explored parts of North America, influencing later explorations.
- Amerigo Vespucci's work in the New World contributed to a better understanding of the geography of the Americas.
These early explorers set the stage for later expeditions, including those of Vasco Núñez de Balboa and Ferdinand Magellan.