Which Statement Is Not Correct

Multiple Choice

Which statement is not correct?

A) Normally the effective plasma concentration of a hormone is regulated by appropriate adjustments in the rate of its secretion.
B) In order to maintain homeostasis, the rate of hormone secretion remains constant.
C) All hormones are regulated with negative feedback controls.
D) Neuroendocrine reflexes produce a sudden increase in hormone secretion in response to a specific, usually external, stimulus.
E) All hormones are regulated by other hormones.