Where are plants of medicinal,rare,and economic importance cultivated?

An institution where different types of wild animals are kept in protected environments under human care for public exhibition is known as...

The famous herbarium of India,which is located in Kolkata,is known as:

Where is the National Botanical Research Institute $(NBRI)$ located?

$S$ Statement: Herbaria are generally associated with botanical gardens and educational or research institutions.
$R$ Reason: $A$ botanical garden is a planned collection of trees,shrubs,herbs,climbers,and other living plants brought from different parts of the world for scientific purposes.
$(a)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(b)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(c)$ $S$ is true and $R$ is false.
$(d)$ $S$ is false and $R$ is true.

What is stuffing?