Temporal summation on a postsynaptic neuron would occur when
a. a single presynaptic input causes two EPSPs to develop in rapid succession
b. an EPSP and an IPSP occur simultaneously and cancel each other out
c. two EPSPs develop simultaneously from different presynaptic inputs
d. two action potentials from two presynaptic inputs causes two action potentials to develop
e. none of the above take place
A
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