Which of the following is the logical sequence of primary succession in rocks?

• A

  Small bryophytes $\rightarrow$ Lichen $\rightarrow$ Herb $\rightarrow$ Shrubs $\rightarrow$ Tress $\rightarrow$ Forest

• B

  Lichen $\rightarrow$ Small bryophytes $\rightarrow$ Herbs $\rightarrow$ Shrubs $\rightarrow$ Tress $\rightarrow$ Forest

• C

  Lichen $\rightarrow$ Herb $\rightarrow$ Shrubs $\rightarrow$ small bryophytes $\rightarrow$ Tress $\rightarrow$ Forest

• D

  Herb $\rightarrow$ Shrubs $\rightarrow$ Lichen $\rightarrow$ Small bryophytes $\rightarrow$ Tress $\rightarrow$ Forest