Answer:
B. James J. McAlester.
Explanation:
The one person who is attributed to the development of the coal industry in Oklahoma is James J. McAlester. James married a Choctaw to gain access in the tribe to exploit them commercially. He was the first person to find a commercial market in Oklahoma though coal was present in the territory for many decades.
Therefore, the correct answer is option B.
The answer is C. the soviet union faced serious economic and political problems.