The correct option is C Liver
One of the most important biochemical roles of liver is detoxification i.e., conversion of toxic substances into non-toxic substance. The toxic substances cab be foreign or xenobiotic compounds or are formed by metabolic activities of the body. One of the detoxification strategies of liver is to make the xenobiotic and harmful chemicals water soluble by hydroxylating them. Once hydroxyl group is added, the chemicals become water soluble and can be easily excreted through urine route.