Hi, the given question is not complete, the question has a diagram, which is given in the attachment below.
Answer:
The correct answer is primary succession post a volcanic eruption.
Explanation:
The phenomenon in which the newly produced rocks get colonized by the living species for the first time is termed as primary succession. The phenomenon of primary succession generally occurs when the soil from the top surface generally gets eroded due to a massive disaster like a volcanic eruption.
The succession starts with a bare rock that later gives rise to mosses and lichens as the prime producers. As can see in the diagram that primary succession typically takes place in the region devoid of any kind of life. In the given figure, it is clear that only cold lava is present everywhere with a slight emergence of species of mosses or lichens taking place within them shows that it is a case of primary succession.