Answer:
Nicotinic acetylcholine receptor.
Explanation:
Nicotonic acetylcholine receptors has the ability to respond towards the acetylcholine molecule. These receptors are used for the transmission of signals.
Muscarinic acetylcholine receptor is located on brain, at neuromuscular junction and in the muscle cell. These receptors are released from the post ganglionic fibers.
Thus, the correct answer is option (a).
