Match column $-I$ and column $-II$ with the correct relation:

Column $-I$	Column $-II$
$(i).$ Lassaigne's test	$(a).$ By sodium peroxide
$(ii).$ Test for nitrogen	$(b).$ Acidify with acetic acid
$(iii).$ Test for sulphur	$(c).$ Acidify with conc. sulphuric acid
$(iv).$ Test for phosphorus	$(d).$ Fusion with sodium

(D) The correct matches are as follows:
$(i).$ Lassaigne's test involves $(d).$ Fusion with sodium.
$(ii).$ Test for nitrogen involves $(c).$ Acidify with conc. sulphuric acid (to form Prussian blue).
$(iii).$ Test for sulphur involves $(b).$ Acidify with acetic acid (to detect sulphide ions).
$(iv).$ Test for phosphorus involves $(a).$ By sodium peroxide (oxidative fusion).
Therefore,the correct sequence is $(i-d), (ii-c), (iii-b), (iv-a)$.