<prompt> Which of the following is the major site of erythropoietin production during the fetal stage?LiverYolk sacBoneSpleen  <response>: Erythropoietin is produced in the fetal liver in the first and second trimester.After bih, the major site of production is in the kidney.Refer: Nelsons Textbook of Pediatrics, SAE, 1st edition, pg no. 2305 - 2306 