Answer the following question: You are presented with the quiz "A bulb with electrical energy does what to the overall space?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "alight bulb requires electrical energy to produce light" and "additional track lighting brightens the overall space". So, what's the best answer to the question?

Available options:
a). closes.
b). moves.
c). It expands.
d). destroys.
e). Change colors.
f). darkens.
g). brightens.
h). adding heat.
Answer:
g).