[A] : The community that ends in a succession is known as climax community .
[R] : For a species population in climax community to be stable , there must be a balance between natality and mortality .

Options

A. If both A and R are true and R is the correct explanation of A
B. If both A and R are true but R is not the correct explanation of A
C. If A is true and R is false
D. If both A and R are false