Which of the following is $NOT$ an example of $ex-situ$ conservation?

In a gene bank,valuable plant materials are stored in a living state. $A$ gene bank is a part of which of the following?

Sanjay Gandhi Biological Park is situated in

$(i)$ Sacred groves $(ii)$ Hot spots $(iii)$ National park $(iv)$ Wild life safari park $(v)$ Seed bank $(vi)$ Biosphere reserve. Select the correct answer from the options given below $:-$ $(a)$ $i, ii, iii, vi$ are the examples of in-situ conservation. $(b)$ $iv, v$ are the examples of ex-situ conservation. $(c)$ $ii, iv, v$ are the examples of ex-situ conservation. $(d)$ $i, ii, iii, iv, vi$ are the examples of in-situ conservation.

Wildlife sanctuaries are established for the protection of specific wildlife species. Select the correct pair from the following:

What has been established to preserve the genes of plants?