According to the tree, which statement about Gibbons and orangutans is correct, is it gibbons evolved from orangutans? They are both ancestors of chimpanzees orangutans evolved from Gibbons, or they both evolved from the common ancestor.

According to the given information, the correct statement is that they both evolved from a common ancestor. The tree does not indicate that gibbons evolved from orangutans or vice versa, nor does it suggest that they are both ancestors of chimpanzees.