Rancidity in sunflower oil is caused by

Answer: Option B

Rancidity is one of the conditions of the oxidation process, aerial oxidation of unsaturated fatty acids present in fats and oils, which causes a change in colour, smell and taste of any such substance. In sunflower oil, because of lipid oxidation, the quality of food decreases, as fats and oils react with molecular oxygen present in the atmosphere resulting in rancidity.