**Pruning in Neuroplasticity**

**Core Concept**
Neuropruning is a process of neuronal elimination that occurs in the developing brain, where weak or unnecessary neural connections are eliminated, refining the neural circuitry and optimizing brain function.

**Why the Correct Answer is Right**
During neuropruning, the neuron undergoes a series of cellular changes, including retraction of dendritic spines, reduction in the number of synapses, and eventual apoptosis of the neuron. This process is mediated by various factors, including BDNF (Brain-Derived Neurotrophic Factor), which promotes the survival of neurons, and NMDA receptor activity, which is involved in synaptic plasticity. Neuropruning is essential for normal brain development, as it helps to eliminate unnecessary neural connections and refine the neural circuitry.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because neuroplasticity, while related to neuropruning, refers to the brain's ability to reorganize itself in response to new experiences and learning.

**Option B:** This option is incorrect because synaptic pruning, while similar to neuropruning, specifically refers to the elimination of synapses, whereas neuropruning is a more general term that encompasses neuronal elimination.

**Option C:** This option is incorrect because neuronal sprouting, while a related process, refers to the growth of new neurons or neural connections, whereas neuropruning is the elimination of existing ones.

**Clinical Pearl / High-Yield Fact**
Neuropruning is an essential process in normal brain development, and abnormalities in neuropruning have been implicated in various neurological and psychiatric disorders, including Alzheimer's disease, depression, and schizophrenia.

**Correct Answer:** C.