Pickout the correct statement amoung the following :
A. Sodium dodecylbenzene sulphonate used in toothpaste is a cationic detergent
B. Sodium lauryl sulphate forms an insoluble scum with hard water
C. cetylmethyl ammonium bromide is a popular cationic detergent used in hair conditioner
D. non-ionic detergents are formed when polyethylene flycol reacts with adipic acid