An ionic micelle is formed on the addition of

 An ionic micelle is formed on the addition of excess water to liquid. 

This complex contains long chains as well as charged heads which are necessary for ion micelle formation. The formation of ion micelles required a charged and soluble head with an insoluble tail. The head is hydrophilic in nature and the tails are hydrophobic in nature. In the micelle, the head points outwards while the tail is inwards and due to this structure dirt can be easily trapped.

Therefore, option C is correct.