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

• A
  $Small \ bryophytes \rightarrow Lichen \rightarrow Herb \rightarrow Shrubs \rightarrow Trees \rightarrow Forest$
• B
  $Lichen \rightarrow Small \ bryophytes \rightarrow Herbs \rightarrow Shrubs \rightarrow Trees \rightarrow Forest$
• C
  $Lichen \rightarrow Herb \rightarrow Shrubs \rightarrow Small \ bryophytes \rightarrow Trees \rightarrow Forest$
• D
  $Herb \rightarrow Shrubs \rightarrow Lichen \rightarrow Small \ bryophytes \rightarrow Trees \rightarrow Forest$