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: Physiology
Simulation of post ganglion sympathetic neurons leads to: 
Select and explain. 
A. Fast EPSP, B. Slow EPSP, C. Slow IPSP, D. All
D: All
Answer: D: All 
Explanation: A i.e. Fast EPSP, B i.e. Slow EPSP, C i.e. Slow IPSP