According to the Life Expectancy Map on the Reading, what is the life expectancy in most African countries vs. most North American Countries?

Witch one is it soo it the the question b.a,b,c,d

Based on the information in the graph, what can you conclude about humans in the world in general?

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.