The sequence of refractory materials according to increasing melting points is:
(A) Dolomite, Magnesia, Bauxite, Chromites
(B) Bauxite, Chromites, Dolomite, Magnesia
(C) Magnesia, Bauxite, Dolomite, Chromites
(D) None of these
(A) Dolomite, Magnesia, Bauxite, Chromites
(B) Bauxite, Chromites, Dolomite, Magnesia
(C) Magnesia, Bauxite, Dolomite, Chromites
(D) None of these