<prompt> Which of the following porphyrin is soluble in water excreted in urine?a Protoporphyrinb Delta-ALAc Coproporphyrind Uroporphyrinabcacdcdad  <response>: Uroporphyrin, the most water-soluble of the porphyrins, is excreted predominantly in urine, coproporphyrin mostly in urine and partly in bile, whereas protoporphyrin, the least soluble, is excreted only in the bile. 