Which Statement Best Describes the All ^-or ^-none Principle

Multiple Choice

Which statement best describes the all ^-or ^-none principle?

A) All neurons conduct an action potential together, or none do.
B) All voltage ^-gated sodium channels will open or none will open.
C) An action potential happens completely, or it doesn't happen at all.
D) Local, or graded, potentials will always become action potentials.