Anthracite, bituminous, lignite and peat are different types of ___________.
A. Iron ore
B. Copper
C. Coal
D. Mica

Hint:- It mainly consists of carbon and is black.
-It is stored as a fossil fuel underground and is extracted for fuel production.
-It is formed under geological actions and takes millions of years to form.

Complete answer:
Coal is essentially a carbonate sedimentary stone. Based on iron contained, coal is delegated peat, lignite, bituminous, and anthracite.
The arrangement of coal takes quite a while. The principal phase of its development is peat. Peat is ordinarily utilized as homegrown fuel as its warming limit is low.
Lignite being the subsequent stage and carbon content is underneath half. Bituminous has carbon content going from 70% to 85%. Almost 80% of the world's coal is of this sort. Anthracite is the best quality coal and 90% of carbon.

Additional Information
Coal is shaped because of the pressure of plant material (petroleum derivatives) for more than a large number of years, subsequently, it is found in an assortment of structures relying upon the levels of pressure and the profundity and season of entombment. Rotting plants in bogs produce peat.
Bituminous is the most broadly utilized coal. Bituminous sort of coal is generally found in India. It is generally found in the conditions of Jharkhand, Orissa, West Bengal, Chattisgarh, and Madhya Pradesh.
Australia is the world's biggest coal exporter, trading about 70% of its coal creation. It represents just about 33% of bituminous coal sent out worldwide and an enormous portion of this coal is coking coal utilized for steel fabricate.

Hence the correct answer is option C.

Note: Anthracite is the best quality of coal. It consumes gradually and produces extraordinary warmth, with almost no smoke. Its carbon content is 80 to 95 percent. Just 5 % of the world's coal yield is anthracite.