Final answer:
An agonist effect aligns with stimulating the release of neurotransmitters, as agonists enhance neurotransmitter activity by promoting synthesis, reducing reuptake, or mimicking their action at receptors. Therefore, the correct option is A.
Step-by-step explanation:
An effect that would be consistent with an agonist is stimulating the release of neurotransmitters. Agonists are drugs that increase the activity of particular neurotransmitters in various ways, such as promoting the synthesis of neurotransmitters, reducing their reuptake from synapses, or mimicking their action by binding to receptors. For instance, in conditions like Parkinson's disease, dopamine agonists are used to mimic the effects of dopamine by binding to dopamine receptors.