A Good Way to Describe a Typical Manic Episode Would

A good way to describe a typical manic episode would be to say that it is like:

A) a roller coaster-up and down, up and down.
B) a meteorite-a sudden burst of energy that is quickly gone.
C) a power plant's output-steady, regular energy being produced.
D) a flash flood-spreading out wherever there is room for it to go.