The best summary of Christopher Columbus’s and Vasco da Gama’s voyages is:
Both wanted to claim the glory of gaining direct access to the Indian Ocean trade route; however, Columbus wanted to expand Spanish territories and da Gama wanted direct access to Asian goods.
This response accurately reflects their motivations and the context of their explorations, distinguishing between Columbus's goal of reaching the Americas (mistakenly thinking he would reach Asia) and Da Gama's successful voyage directly to India for trade.