B. The two groups share a relatively recent common ancestor.
(A. Cannot be true because human and monkeys are not that closely related
C. Cannot be true because it is not explicitly indicated by the DNA evidence provided by the excerpt
D. Cannot be true because monkeys would be extinct if human replaced them)
They move by osmosis(a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.).
You will subtract 2010 by 1880 and get 130