The Appalachian coal fields, one of the important coal fields in the world, are located in ________

 A. China

B. Great Britain

C. U.S.A.

D. Russia

Note: The Appalachian coal fields, one of the important coal fields in the world, are located in U.S.A. Appalachia is one of three coal-mining regions in the United States; the others are the Interior coal region, and the Western coal region, which includes the Powder River Basin.