This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
"Nerve terminals release chemicals"-discovered by 
Select and explain. 
A. Dale, B. Withering, C. Domagk, D. Langley
A: Dale
Answer: A: Dale 
Explanation: It was discovered in 1914 by Henry Hallet Dale. Acetylcholine was confirmed as a neurotransmitter by Otto Loewi. Ref : guyton and hall textbook of medical physiology 12 edition page number:675,676,677