The correct answer is area D.
Secondary succession signifies towards an array of community modifications, which takes place on a prior colonized but disturbed or damaged habitat. The example includes the area, which has been cleared of existing vegetation mainly due to fire.
A climax community refers to an ecological community in which the plants or animals populations remain stable and exist in the state of equilibrium with each other and their surroundings. A climax community signifies towards the eventual stage of succession that remains relatively unaltered until hampered by an incident like the fire or human involvement.
Therefore, the steady state of vegetation development in an area with time during secondary succession demonstrates the climax community. Hence, area D signifies the climax community of secondary succession.
