What was firmly established in the supreme court case of marbury v madison? a. the system of checks and balances. b. the presidential power of veto legislation c. the congressional power to impeach a president or d. the judicial power to decide whether a law is constitutional

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.