Answer
he match for #9 is "d", nicotinic receptors of acetylcholine.
Work Step by Step
In the ANS preganglionic neurons bind to nicotinic postganglionic receptors.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.