The correct options are
B Lignite
C Bituminous
D Anthracite
Coal is formed after the formation of peat and it has been classified into three categories: Lignite, Bituminous and Anthracite are the three types of coal. Lignite is low-grade brown coal having about 60 to 70% carbon and Anthracite is the highest quality coal having a carbon content of more than 86%. Bituminous coal has a carbon content ranging from 69 to 86%.