Which Is True of California in the 1850s

Which is true of California in the 1850s?

A) Thousands of Indian children were bought and sold as slaves.
B) Thousands of free blacks were paid minimal wages to work the worst jobs in the mining camps.
C) Voting rights were extended to all "white" men, including immigrants from Asia, but denied to Indians and free blacks.
D) Indian communities prospered by renting land and selling supplies to gold miners.
E) Wealthy Mexican landowners dominated the new state government.