Economists at the Department of the Treasury a. design U. S. currency and coins. b. provide Congress with the annual budget. c. enforce the U. S. antitrust laws. d. provide advice on tax policy to the President.

D)provide advice on tax policy to the president.

The economist in the treasury department are entrusted with responsibility of making policy relating to tax and how if affects the economy.

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.