Identify the correct statement about a biosphere reserve.

Question

$\begin{array}{1 1} (a)\; \text{It is a protected area where only endemic species live} \\ (b)\; \text{It is meant for conservation of plants and animals} \\ (c)\; \text{It is meant to conserve both the biodiversity and cultures of that area} \\ (d)\; \text{There is no other protected areas within its limits} \end{array}$