Which of the following events marked a significant turning point in relationships between different races in the United States?
A. The election of Hillary Clinton to the U. S. Senate in 2000
B. The election of Barack Obama as president in 2008
C. The resignation of President Richard Nixon in 1974
O D. The impeachment of President Bill Clinton in 1999

Which statement describes the central idea of the text? a. while the nigerian government has the wealth to improve the conditions in prisons, they continue to view it as a low priority. b. nigerian prisons neglect the physical and mental health of their prisoners by failing to provide them with basic necessities and services. c. the inhuman conditions in nigerian prisons could easily be improved, but the environment is considered part of prisoners' punishment. d. conditions in nigerian prisons are slowly improving as non-government organizations and citizens are providing much-needed equipment to the prisons.