Which statement below is not correct?
A. Acetylcholine is released by postganglionic parasympathetic fibers.
B. Acetylcholine is released by most postganglionic sympathetic fibers.
C. Acetylcholine is released by preganglionic sympathetic fibers.
D. Acetylcholine is released by preganglionic sympathetic and parasympathetic fibers.
E. Acetylcholine is released by preganglionic parasympathetic fibers.
Answer: B
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