The correct option is D a-iii, b-iv, c-ii, d-i
∙ SKIN (NIKS): Skin has sweat and sebaceous glands from which wastes like excess salts, water, hydrocarbons, etc., are removed in the form of sweat and sebum respectively.
∙ LUNGS (SUNLG): During the respiration process, lungs help in the elimination of carbon dioxide and water.
∙ INTESTINE (NITETESNI): Intestine helps in the excretion of excess salts and undigested food along with faeces.
∙ LIVER (IVERL): Haemoglobin from dead RBCs are converted to bile pigments in the liver and is excreted along with stools.