Assume That a Hypothetical Neuron Has Three Presynaptic Inputs Converging

Assume that a hypothetical neuron has three presynaptic inputs converging upon it. Presynaptic inputs A and B are excitatory, and C is inhibitory. Indicate which of the following changes will take place by writing the appropriate letter in the blank using the answer code below:
-What would occur if presynaptic neuron B is fired rapidly?

A) There will be no change in potential of the postsynaptic cell.
B) Spatial summation will occur.
C) Temporal summation will occur.