Two neurons, A and B, synapse onto a third neuron, C. If the… Two neurons, A and B, synapse onto a third neuron, C. If the synapse between cell A and cell C is excitatory and the synapse between cell B and cell C is inhibitory, which of the following statements is true? A.Simultaneous arrival of action potentials from cell A and B at the synapse with cell C will cause less depolarization of neuron C than if only A fired an action potential.  B.An action potential in neuron B will bring neuron C closer to its action potential threshold than would an action potential in neuron A.  C.An action potential in neuron B causes a depolarization of the membrane of cell C.  D.An action potential in neuron A causes a depolarization of the membrane of cell B.   Biology Science Physiology BIOL 246