<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 31-year-old male comes to the physician because of a 2-day history of blisters and brownish discoloration of urine. His symptoms appeared after he returned from a 4-day trip with his friends in Florida. He has had similar episodes of blistering twice in the past three years. Each episode resolved spontaneously after a few weeks. Examination shows vesicles and bullae on the face and the dorsal surfaces of his hands and forearms. His condition is most likely caused by a defect in which of the following enzymes?? A: Aminolevulinic acid dehydratase, B: Uroporphyrinogen III synthase, C: Porphobilinogen deaminase, D: Uroporphyrinogen III decarboxylase, E: Aminolevulinic acid synthase,  <response>: This is a question about porphyria, a group of disorders caused by abnormalities in the heme biosynthesis pathway. The patient has symptoms of blistering skin and brown urine after sun exposure, typical of porphyria cutanea tarda PCT. PCT is caused by a deficiency of the enzyme uroporphyrinogen decarboxylase. So the correct answer should be the enzyme choice that is consistent with uroporphyrinogen decarboxylase deficiency causing PCT.D: Uroporphyrinogen III decarboxylase 