Why was it difficult for african countries to establish democratic governments?

Yes

Explanation:

This new disposition toward democratization in Africa is a consequence of pressures both internal and external to African societies. To be sure, the continent's declining economic fortunes have made people more skeptical and critical of their governments, with new African thinking prompting individuals to move beyond old taboos. Demands from within African countries are pressing leaders to deliver on the promises of economic growth and prosperity they made in order to encourage the acceptance of structural adjustment policies supported by international financial institutions. The new insistence by external aid donors and creditors on good governance also has provided a window of opportunity for African democrats to push for transparency and accountability in their countries. Likewise, the worldwide democratic revolution and its corresponding summons to protect and promote individual human rights have contributed to generating protests.

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a and b because with the other three, they simplify to something else.