**Core Concept**
The question is asking about the type of neurotransmission involved. In the context of the nervous system, neurotransmission can be either excitatory or inhibitory, depending on the type of neurotransmitter released and the receptors it binds to. Excitatory neurotransmission involves the release of neurotransmitters that increase the likelihood of firing in the postsynaptic neuron.

**Why the Correct Answer is Right**
Excitatory neurotransmission is mediated by neurotransmitters such as glutamate, aspartate, and acetylcholine, which bind to receptors on the postsynaptic neuron and increase the flow of positively charged ions into the cell. This depolarization of the postsynaptic neuron makes it more likely to fire an action potential. Glutamate, in particular, is the primary excitatory neurotransmitter in the central nervous system, and its release is essential for learning and memory.

**Why Each Wrong Option is Incorrect**
* **Option A:** Inhibitory neurotransmitters, such as GABA and glycine, decrease the likelihood of firing in the postsynaptic neuron by increasing the flow of negatively charged ions into the cell.
* **Option B:** This option is incomplete, but based on the context, it might refer to a type of neurotransmitter or receptor that is not excitatory.
* **Option C:** This option is also incomplete, but it might refer to a type of neurotransmitter or receptor that is not excitatory.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that the balance between excitatory and inhibitory neurotransmission is crucial for proper neural function. An imbalance can lead to various neurological disorders, such as epilepsy, Parkinson's disease, and schizophrenia.

**Correct Answer:** C.