Although the Stock Market crash of 1929 and the Great Depression are not the same thing, how did the first lead to the second (explain the cause and effect relationship between the two)?

Which of these statements describes a long-term impact of european imperialism in africa? a. african countries joined together to present a united front against imperialism. b. europeans paid african countries after colonizing them, offering these new countries a fresh start. c. european powers drew the current borders, splitting ethnic groups among modern countries. d. africans became more loyal to their countries than to their ethnic groups.