The correct option is C Norepinephrine
Norepinephrine is a chemical released from the sympathetic nervous system in response to stress. It is classified as a neurotransmitter, a chemical that is released from neurons. Because the release of norepinephrine affects other organs of the body, it is also referred to as a stress hormone. So, norepinephrine is a chemical regulator, released as a neurotransmitter by sympathetic nerve endings and is also secreted by the adrenal gland as a hormone.