**Core Concept**
Drugs used for treating schizophrenia are primarily antipsychotics, which act on the dopaminergic system in the brain to alleviate symptoms. Antipsychotics can be classified into first-generation (typical) and second-generation (atypical) antipsychotics based on their side effect profiles and receptor binding affinities.

**Why the Correct Answer is Right**
The correct answer is antipsychotics because they decrease the activity of dopamine in the mesolimbic pathway, which is thought to be overactive in schizophrenia. This is achieved through the blockade of dopamine D2 receptors in the striatum. Antipsychotics also have varying degrees of blockade on serotonin 5-HT2A receptors, which contributes to their efficacy and side effect profiles.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because anticholinergics, such as benztropine, are used to treat extrapyramidal side effects (e.g., tardive dyskinesia) caused by antipsychotics, but they are not used to treat schizophrenia.
* **Option B:** This option is incorrect because benzodiazepines, such as alprazolam, are anxiolytics used to treat anxiety disorders, but they are not used to treat schizophrenia.
* **Option C:** This option is incorrect because mood stabilizers, such as lithium, are used to treat bipolar disorder, but they are not used to treat schizophrenia.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that antipsychotics can cause extrapyramidal side effects (EPS) due to their blockade of dopamine D2 receptors in the nigrostriatal pathway. EPS can be managed with anticholinergics or amantadine.

**Correct Answer:** C.