Read the paragraph. gold was found in california in 1849. this discovery fired the imaginations of many people and greatly affected california’s history. the gold rush that followed the discovery drew prospectors from all over the world. those prospectors later became known as forty-niners. the arrival of this group stimulated economic growth and the expansion of the railroad system. which of the following best summarizes the passage? a. people that panned for gold were imaginative. b. gold rush prospectors were known as the forty-niners. c. the gold rush started when gold was found in california in 1849. d. the railroad expanded because of the gold rush.