If a muscle cell expressed muscarinic ACh channels, which are only permeable to Na+ instead of nicotinic ACh channels, which are permeable to both Na+ and K+, which portion of a muscle cell would be inhibited?

A) Neurotransmitter release from the motor neuron
B) Muscle cell depolarization
C) Cross-bridge cycling
D) Relaxation
E) None of the answer choices are corre