If a Neuroscientist Observed a Collection of Neurons That Were

Multiple Choice

If a neuroscientist observed a collection of neurons that were all labeled positive for glutamate,why would she likely next decide to see which neurons also have glutamic acid decarboxylase?

A) To determine which neurons released the neurotransmitter GABA
B) To determine the synthesis steps for glutamate
C) To determine which neurons may be at risk for excitotoxicity
D) To determine if the neurons had ionotropic or metabotropic receptors