Which of the following is the correct sequence of coal in descending order of quality?

• A. Bituminous, Anthracite, Lignite, Peat
• B. Anthracite, Bituminous, Lignite, Peat
• C. Anthracite, Lignite, Peat, Bituminous
• D. Anthracite, Peat, Bituminous, Lignite