Which Description Best Describes the Mechanism by Which Local Anesthetic

Multiple Choice

Which description best describes the mechanism by which local anesthetic drugs work?

A) Anesthetic drugs bind to the sodium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
B) Anesthetic drugs bind to the potassium channels,the influx of sodium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
C) Anesthetic drugs bind to the sodium channels,the influx of potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.
D) Anesthetic drugs bind to the sodium channels,the influx of sodium and potassium is interrupted,the action potential cannot rise,and the signal conduction is inhibited.