The correct answer is option a and b, that is, adrenaline and norepinephrine.
A neuron known as an adrenergic nerve fiber exhibits the neurotransmitter either in the form of noradrenaline, adrenaline (epinephrine), or dopamine. These neurotransmitters are discharged at a place called synapse, that is, an intersection point between the axon of one and the dendrite of another nerve cell.
The adrenergic nerve terminals are observed in the secondary neurons of the sympathetic nervous system, one of the two deviances of the autonomic nervous system that is accountable for the flight or fight response.
