Which of the Following Best Sums Up Current Scientific Thinking

Which of the following best sums up current scientific thinking about the nature of dark energy?

A) Dark energy is the source of the mind weapon used by Sith Lords in Star Wars.
B) Dark energy is most likely made up of weakly interacting particles that do not interact with light.
C) Dark energy most likely consists of a form of photons that we can't see or detect.
D) Dark energy probably exists, but we have little (if any) idea what it is.