Which statement is true of succession? most communities are already completely stable. most communities take hundreds of years to become stable. most communities never become completely stable. most communities take thousands of years to become stable.

Option B, Most communities never become completely stable

Explanation:

In an ecological succession, most of the species are unstable and they keep on changing continuously. The succession is primarily of two types –  

a)Primary Succession – In this, community of species occur on a new habitat which had been never occupied earlier. Or it can be said that it is entirely a new habitat.

b)Secondary Succession – In this, community of species occur in a habitat where earlier life existed but it was disturbed or damaged by some environmental condition.  

Hence , the correct answer is option B