The correct option is B Climax stage
Generally in and ecological succession a definite and orderly sequence of communities gradually appear in an area over a period of time. The first community which appears in an area is called pioneer community. Theoretically, as a result of succession a community will eventually form which is in complete equilibrium with the physical environment and no further changes will occur to that community. This is known as the climax community. The intermediate stages between the pioneer community and the climax are called seral stages.