5.0 points
altruistic acts are those:
a. intended to serve our own interests.
b. undertaken solely for the benefit of others.
c. that punish cheaters.
d. that strengthen social norms.

swahili is an extremely rich and complex civilization, a set of ethnic groups articulated by a language and a series of cultural elements that fuse the african traditions, islam and indian culture. this growth was largely a result of the indian ocean trading network that brought in not just man-made riches, but also religious ideas, specifically islam, which had a significant impact on the local culture. furthermore, the development of the swahili language gave a common cultural unity to the people.

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