The different African colonies aren't united because of their languages, religion, and culture. Because of this, European armies are large and can easily take over the small African colonies because they don't like eachother and won't put their powers together for the greater good.
exploitation of African natural resources by colonial powers
Higher Prices due to the lack of incoming goods and capital.
The right answer is most likely to be 2). The rest are assumptions that cannot be made due to a lack of supporting evidence, or just simply not mentioned.
Is this supposed to be a true or false question or an answer to someone else’s question?