Match the columns:

Column-$I$	Column-$II$
$(a)$ Bears	$(i)$ Diapause
$(b)$ Snails	$(ii)$ Hibernation
$(c)$ Zooplanktons	$(iii)$ Dormancy
$(d)$ Seeds	$(iv)$ Aestivation

(A) The correct matches are as follows:
$(a)$ Bears undergo Hibernation to escape winter cold,so $(a - ii)$.
$(b)$ Snails undergo Aestivation to avoid summer heat and desiccation,so $(b - iv)$.
$(c)$ Zooplanktons in lakes and ponds enter a stage of suspended development known as Diapause under unfavourable conditions,so $(c - i)$.
$(d)$ Seeds remain in a state of Dormancy until favourable conditions return for germination,so $(d - iii)$.
Therefore,the correct sequence is $(a - ii, b - iv, c - i, d - iii)$.