Which of the following statements are true?
a. waste isn't a problem in reaching group goals.
b. sacrifice isn't necessary to achieve group goals.
c. individual productivity is necessary for group productivity.
d. individual productivity is more important than group productivity.

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.