4 When a neurotransmitter binds to its receptor and increases the permeability of the postsynaptic membrane to sodium ions, A: the membrane will be hyperpolarized. B: more chloride ions will also...

4 When a neurotransmitter binds to its receptor and increases the permeability of the postsynaptic membrane to
sodium ions,
A: the membrane will be hyperpolarized.
B: more chloride ions will also diffuse into the cell.
C: an excitatory postsynaptic potential (EPSP) will result.
D: the membrane will become impermeable to potassium ions.