The following main points are arranged in ( ) order. “I. Early people did not have money but used a system of exchange based on the barter of goods and services. II. Coin money was invented in ancient Turkey, China, and India before the birth of Christ. III. Paper money began in China about 600 A.D. but did not become popular in the West until the 1600s. IV. Today almost every country has an official currency tied to the international rate of exchange.” A. topical B. spatial C. chronological D. problem-solution