1wow,never thought of it.anyway,lets go by the elimination method.
certainly,it can't be D, as such kind of double reduction reaction is not possible.next,in C , if atomic
hydrogen is released,it makes H2O,a strong oxidising agent.and thus,most relatively H2O is
formed but it would be highly explosive,for which this reaction is perhaps used in oxy-hydrogen flame for
weilding and cutting metals by attainig very high temperatures
