Which of the following statements are correct?

I. China is the leading coal producer of the world.
II. Donetsk Basin is the major coal producing region in Ukraine.
III. Saar Region is the major coal producing area in Germany
IV. The major coal mining areas of the USA lie in the Appalachian Region.

Select the correct answer from the codes given below:
Codes:

A) I and II

B) II and III

C) I, II and III

D) All of above

This MCQ is part of the UP PSC Previous Year Questions (PYQs) series, focusing on UPPSC Prelims 1999 (GS Paper I)