Answer:
Option: c. Francisco Vásquez de Coronado
Step-by-step explanation:
Francisco Vásquez de Coronado, a Spanish explorer in 16th century, known for his expeditions in Southwest of America, discovered the Grand Canyon and Colorado River. He became the first European explorer to encounter herds of bison, also known as American buffalo in Llano. His route took him into new areas which were not explored by Europeans before.