Voluntary trades are made when a. a sale makes the price low enough b. both parties expect to gain from the trade c. one party has something the other does not d. one party can do something the other cannot select the best answer from the choices provided

C.  one party has something the other does not

Explanation:

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.

answer; integrative;