Which calculates opportunity cost?

a. finding the value of the best option that is not chosen.
b. calculating the cost of time, energy, and sacrifice.
c. subtracting all costs from the total benefit.
d. adding the value of all lost opportunities.

finding the value of the best option that is not chosen

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; empathy;