The rapid population growth during the California Gold Rush gradually led to A. a renewed interest in westward expansion and land treaties with Native Americans
B. the rebuilding of old ghost towns and the need for telegraph lines
C. new business ventures in food, clothing, and mining and demands for new forms of transportation
D. a spurt of political activity that led to popular sovereignty

Tori is researching for her blog post about how wearing sunblock can prevent skin cancer, and she finds a page about her topic on the united states centers for disease control website at is this a reliable site for tori’s research? yes, because it is presented by a college or university no, because it is a personal opinion about the subject yes, because it is run by a governmental organization no, because it is intended to advertise a certain product