This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Benzodiazepines act preferentially on which part of the brain to block thought and mental functions? 
Select and explain. 
A. Hypothalamus, B. Thalamus, C. Limbic System, D. Area Postrena
C: Limbic System
Answer: C: Limbic System 
Explanation: None