Match the columns:

Column-$I$	Column-$II$
$(a)$ Cacti	$(i)$ Leguminous plants
$(b)$ Shade loving plants	$(ii)$ Commensalism
$(c)$ Halophytes	$(iii)$ Pioneer community
$(d)$ Crustose lichen	$(iv)$ Plants growing in saline environment
$(e)$ Interspecific interaction	$(v)$ Xerophytes
$(f)$ Rhizobium	$(vi)$ Sciophytes

(A) The correct matches are as follows:
$(a)$ Cacti are xerophytes,so $(a-v)$.
$(b)$ Shade-loving plants are known as sciophytes,so $(b-vi)$.
$(c)$ Halophytes are plants that grow in saline environments,so $(c-iv)$.
$(d)$ Crustose lichens are the pioneer community in primary succession on bare rocks,so $(d-iii)$.
$(e)$ Commensalism is a type of interspecific interaction,so $(e-ii)$.
$(f)$ Rhizobium is a nitrogen-fixing bacterium found in the root nodules of leguminous plants,so $(f-i)$.
Therefore,the correct sequence is $(a-v, b-vi, c-iv, d-iii, e-ii, f-i)$.