Which issue separated the north and the south in 1861? a. the south supported the expansion of slavery, and the north did not. b. the north wanted to end immigration from ireland, and the south did not. c. the north wanted lower tariffs to protect factory workers, and the south did not. d. the south supported the building of more railroads, and the north did not.

What explains the increase in life expectancy in botswana? a. the increased availability of jobs and an improved economy b. access to antiretroviral drugs, hiv/aids education, and widespread hiv/aids testing c. a series of military takeovers that stabilized the political system and led to education reform and increased literacy rates d. a recent military coup that led to an improved healthcare system select the best answer from the choices provided.