he effect of acetylcholine can be stimulating or inhibiting. Which of the following gives the best explanation for why this is so?

Question

The effect of acetylcholine can be stimulating or inhibiting. Which of the following gives the best explanation for why this is so?

Acetylcholine can act as an agonist or as an antagonist

Different post synaptic cells will have different receptors for acetylcholine

Acetylcholine has a "dose effect". Larger doses are stimulating while small doses inhibit

Acetylcholine has many different forms

Answer 1

that have different effects on the body.