1. Which fact from the article provides the BEST evidence to support the claim that the early explorers’ expeditions were significant to the United States Government? Responses A. Manual Lisa was the most influential person on the Western frontier. A. Manual Lisa was the most influential person on the Western frontier. B. Trading methods provided enormous financial rewards. B. Trading methods provided enormous financial rewards. C. Knowledge gained of the area helped create more accurate maps C. Knowledge gained of the area helped create more accurate maps D. Americans learned that the central Rockies lay between Montana and New Mexico. D. Americans learned that the central Rockies lay between Montana and New Mexico.