question_answer

Raman is a 20 year old junior in college. He is majoring in biology and hopes someday to be a pediatrician. Beginning about a monts ago, Raman noticed that he was waking up once, sometimes twice a night, by the need to go to the bathroom. More recently, he has noticed that the needs to go th the bathroom during his school day much none frequently than before, sometimes as often as once every hour. His blood sugar is found to be normal. The most probable cause is

A)  excess of insulin in blood

B)  deficiency of glucagon in blood

C)  hyposecretion of poserior pituitary hormone       

D)  hyper secretion of pituitary hormones