Insulin enhances the transport of glucose from the blood intomost of the body cells, its secretion is controlled by anegative-feedback system between the concentration of glucose inthe blood and the insulin-secreting cells, therefore which of thefollowing statements is correct?
Select one:
a. A decrease in blood glucose concentration stimulates insulinsecretion, which in turn further lowers the blood glucoseconcentration
b. An increase in blood glucose concentration stimulates insulinsecretion, which further increases the blood glucoseconcentration
c. A decrease in blood glucose concentration stimulates insulinsecretion, which in turn increases the blood glucoseconcentration
d. An increase in blood glucose concentration stimulates insulinsecretion, which in turn lowers the blood glucose concentration
