Which among the following is a G protein–coupled receptor?

Which among the following is a G protein–coupled receptor? Correct Answer Muscarinic cholinergic agents

Muscarinic cholinergic agents is an example of G protein-coupled receptor. GPCRs are an evolutionarily conserved gene superfamily with members from yeast to mammals in all eukaryotes. Muscarinic agonists, especially in the GI tract, urinary bladder and the eye, are most widely used when it is desirable to improve smooth muscle tone.
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