In modern steam generator, the correct path of gases from boiler furnace to chimney is
(A) Boiler furnace, Economizer, Air preheater, Superheater and Chimney
(B) Boiler furnace, Superheater, Air preheater, Economizer and Chimney
(C) Boiler furnace, Air preheater, Superheater, Economizer and Chimney
(D) Boiler furnace, Superheater, Economizer, Air preheater and Chimney