When the light bulb in your lamp no longer works, it is
because the bulb has
a. run out of electrons and so there is no more current
b. run out of energy and can no longer pump charge
c. run out of voltage and must be re-charged
d. a broken filament that has resulted in an open
circuit
e. burned all of its watts and can no longer shine
f. tripped a circuit breaker and must be fixed at the
fuse box
g....nonsense! The bulb is fine; your family just needs
to fully pay their power bill.