Final answer:
EPSPs do not last for hours, even if a fast receptor is activated.
Step-by-step explanation:
The statement is b) False
Excitatory postsynaptic potentials (EPSPs) are temporary changes in the membrane potential of a postsynaptic neuron that make it more likely to fire an action potential. These potentials do not last for hours, even if a fast receptor is activated. EPSPs are rapid and short-lasting, typically lasting only a few milliseconds.