Question

the economies of most african colonies were dependent on
industrial development.
one or two crops.
a strong middle class.
diverse farmlands.

Explanation:

Colonial powers structured African economies to focus on producing a small number of cash crops (like cotton, cocoa, or rubber) for export to the colonizing nation, creating a dependent, monocrop or dual-crop economic system. Industrial development was suppressed, strong middle classes were not fostered, and farmlands were specialized, not diverse, under colonial rule.

Answer:

one or two crops.