Answer:
Option C, Secondary succession
Step-by-step explanation:
It is the for of ecological succession in which life starts originating from a region where it has existed earlier but due to some natural incidences it has disappeared for a certain duration of time.
Here in this the rock is exposed which means some natural process has caused this. After which lichen and mosses starts originating from it. Then the other superior form of life starts originating.
Thus, it is an example of secondary succession.
Option C is correct.