Which of the following is associated with botanical gardens?

In zoological parks,animals are

Statement $S$: The Great Banyan tree is located in the Indian Botanical Garden,Shibpur.
Reason $R$: Botanical gardens possess attractive beauty.
$(a)$ 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.

Keys are generally $analytical$ in nature.

$A$ museum is defined as .......

Botanical gardens are used for obtaining integrated information about which fields of study?