Which neurotransmitter is most likely to have been released in Mirna's nervous system when she saw the dog

A) Epinephrine
B) Dopamine
C) Norepinephrine
D) Adrenaline

Norepinephrine is a neurotransmitter that is responsible for the "fight or flight" response in the body, which includes an increased heart rate, rapid breathing, and feeling of anxiety or fear. These are the same symptoms that Mirna experienced when she saw the dog, and therefore it is most likely that norepinephrine was released in her nervous system. Adrenaline and epinephrine are simply different names for the same hormone, which can also be released during the "fight or flight" response. Dopamine is a neurotransmitter that is associated with pleasure and reward, and would not be released in this situation.