What is the end plate potential and how does it relate to a muscle action potential?

• A. It is a sustained depolarization that inhibits contraction
• B. It is a local depolarization that fails to trigger an action potential
• C. It is the local depolarization of the motor end plate caused by ACh that triggers a propagated muscle action potential
• D. It is a hyperpolarizing potential that prevents contraction

Answer: (C)