All of the following changes typically happened in colonies as a result of imperialism, except

B. they became more economically self-sufficient

Explanation:

The colonies were experiencing lot of changes because of the imperialism. Once the imperialists were establishing their power, they immediately started to implement numerous things that were going in their advantage. Their were big cultural influences, including the forcing of their own culture over the natives, imposing their religion, making their language official language etc. They were also building lot of new infrastructure in order to achieve their economic goals through exploitation of the natural resources of the colony. One thing that didn't happened is that the colonies were becoming more self-sufficient. The reason for this was that the colonies were under total economic control and dependence of the foreign investments, so the whole profit was going out of them. Also, the means through which the profit was made were totally under the control of the colonists, so without them, the colonies were not going to be able to do anything to sustain themselves economically.

some american cities felt workers were being oppressed by business monopolies