A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system

Options

A. Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
B. Hypothalamus activates the parasympa-thetic division of brain
C. Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal cortex
D. Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla

Answer

D