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

Select the correct match:

Column $I$	Column $II$
$a.$ Ex-situ conservation	$(i)$ Central National Herbarium
$b.$ Quick referral system	$(ii)$ Museum
$c.$ Preserved plants and animals	$(iii)$ Flora
$d.$ Actual account of habitat and distribution of plants of a given area	$(iv)$ Royal Botanical Gardens,Kew

Which of the following is a botanical garden located in Gujarat?

Describe Key as a taxonomical aid.

What is the importance of a Herbarium?

Statement $S$: Rani Jijamata Udyan is located in Mumbai.
Reason $R$: Himalayan Zoological Park is located in Gangtok.
$(a)$ 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.