The ritual of the kowtow was significant throughout east and central asia for all of the following reasons except
a. it established chinese control in the subordinate lands
b. it established the protocol of diplomatic contacts
c. it promoted cultural exchanges between china and her neighbors
d. it fostered trade with china and the other nations of asia

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.