Which of the following is useful in obtaining economic and ethnobotanical information?

Which areas on Earth are considered 'open books' for gaining knowledge about the classification of living organisms?

Assertion $(A)$: Botanical gardens and zoological parks are $ex-situ$ conservation approaches.
Reason $(R)$: Botanical gardens and zoological parks are located within museums.
Which option is correct for Assertion $(A)$ and Reason $(R)$?

$S$ Statement: Zoological parks serve as centers for learning about the conservation of wildlife.
$R$ Reason: Botanical gardens are used to establish seed banks where gene pools are created for the preservation of rare genes.
$(a)$ 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.

Statement $S$: The Museum of Natural History is located in England.
Reason $R$: The Herbarium of Forest Research is located in Kolkata.
$(a)$ Both $S$ and $R$ are true,$R$ 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.
$(d)$ Both $S$ and $R$ are false.

Which of the following is a storehouse of collected plant specimens?