What was a difference between the explorers christopher columbus and amerigo vespucci? a. columbus was a sailor, while vespucci was primarily a religious missionary, intent on spreading catholicism into the americas. b. vespucci established multiple colonies in south america, while columbus only established one colony in mexico. c. vespucci understood that the americas were unknown lands to europeans, while columbus believed that he had landed in asia. d. vespucci grew wealthy from his explorations, while columbus remained a man of humble means.