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
A patient requires mild cholinomimetic stimulation following surgery. Physostigmine and bethanechol in small doses have significantly different effects on which of the following ? 
Select and explain. 
A. Gastric secretion, B. Neuromuscular junction, C. Sweat glands, D. Ureteral tone
B: Neuromuscular junction
Answer: B: Neuromuscular junction 
Explanation: None