C. The increase in the use of coal as a source of heat and energy
<span>The counties with two units had a majority of the votes, despite only making up one-third of the population.</span>
The right answer for the question that is being asked and shown above is that: "D Africans were generally able to hide from or defend themselves against Europeans." Europeans generally buy slaves from slave traders rather than capturing the slaves themselves because D Africans were generally able to hide from or defend themselves against Europeans.<span>
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The answer is B. I think.
