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 matter?

A) Most dark matter probably consists of weakly interacting particles of a type that we have not yet identified.
B) About 90% of dark matter consists of ordinary matter in the halo of the galaxy, and of the other 10% of WIMPs.
C) There is no longer any doubt that dark matter is made mostly of WIMPs.
D) Dark matter probably does not really exist, and rather indicates a fundamental problem in our understanding of gravity.