The building of roads, bridges and railroads was seen to both a positive and negative impact because...
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1 point
a.European nations used those to extract natural resources and then destroyed them when they left, creating jobs for African people.
b.African men were hired to build them at higher than normal wages.
c.Europeans taught the African people how to build this type of infrastructure.
d.Europeans used them to extract resources, leaving a vast network or routes that were useful to the continent well into the 20th century.