Language helped the Islamic empire to unite under the Abbasid Dynasty, which was the Arabic Language. It was easier to communicate and understand each other by speaking one language and having one religion (belief.) The correct answer is (c.) Arabic Language.
The Federal Reserve Act is an Act of Congress that created the Federal Reserve System, and which created the authority to issue Federal Reserve Notes as legal tender
Can be in the form of a colony where a foreign country is in control of a protectorate with the local government controlled by a foreign country. A foreign country can also exert a great deal of economic influence. One of the most widespread forms of imperialism was colonization.