For Summation of Membrane Potentials and Subsequent Generation of an Action

Multiple Choice

For summation of membrane potentials and subsequent generation of an action potential to occur,all incoming synaptic potentials must

A) be excitatory (EPSPs) .
B) be inhibitory (IPSPs) .
C) originate at the same time and place.
D) originate from the same place,although they may occur at separate times.
E) originate at the same time,although they may come from separate places.