<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 2-day-old infant dies of severe respiratory distress following a gestation complicated by persistent oligohydramnios. Upon examination at autopsy, the left kidney is noted to selectively lack cortical and medullary collecting ducts. From which of the following embryological structures do the cortical and medullary collecting ducts arise?? A: Pronephros, B: Mesonephros, C: Paramesonephric duct, D: Metanephric mesenchyme, E: Ureteric bud,  <response>: This is a question about the embryological origin of the collecting ducts in the kidney. The key point is that the collecting ducts arise from the ureteric bud, which induces the metanephric mesenchyme to differentiate into the nephrons and collecting duct system. E: Ureteric bud 