What kind of molecule is likeliest to act as an anesthetic

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What kind of molecule is likeliest to act as an anesthetic in mammals?

a. One which destroys myelin.
b. One which is highly negatively charged.
c. An inhibitor of the Na+ pump of neuron plasma membranes.
d. One which binds to voltage-gated sodium channels and blocks passage of sodium ions through them.

Reference no: EM13116252

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