<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:Two weeks after hospitalization for acute psychosis, a 27-year-old woman with a history of paranoid schizophrenia comes to the physician because of difficulty walking and shaking movements of her hands. Current medications include fluphenazine, which was started during her recent hospitalization. Examination shows a shuffling gait, rigidity in the upper extremities, and a low-amplitude tremor of her hands that improves with activity. Mental status examination shows no abnormalities. Treatment with a drug with which of the following mechanisms of action is most likely to provide relief for this patients current symptoms?? A: β-adrenergic antagonist, B: GABA agonist, C: Dopamine antagonist, D: Histamine antagonist, E: Muscarinic antagonist,  <response>: This is a patient with a history of paranoid schizophrenia who is now experiencing extrapyramidal side effects likely due to the recent initiation of fluphenazine treatment. Fluphenazine is a typical antipsychotic that blocks dopamine D2 receptors, which can lead to extrapyramidal symptoms like Parkinsonism. The question is asking for a medication that would help relieve these extrapyramidal symptoms.E: Muscarinic antagonist 