You Are Studying the Neurons Involved in the Frontostriatal Loops

You are studying the neurons involved in the frontostriatal loops. You find that a neuron uses GABA as a neurotransmitter and expresses the D2 dopamine receptor. This neuron would be best classified as ______________________.

A) a neuron in the substantia nigra
B) a neuron in the striatum, involved in the direct pathway
C) a neuron in the striatum, involved in the indirect pathway
D) a neuron in the pallidum
E) all of the above