While Reading a Journal Article on the Evolution of Primate

While reading a journal article on the evolution of primate characteristics, you note that the author supports the arboreal hypothesis as the driver of the primate evolution.Which of the following arguments could you develop in response to this article?

A) Many species outside of the primate order also live in trees and have forward-facing eyes, but they are not primates.
B) The depth perception developed as a result of binocular vision is as important in feeding strategy as it is in moving through an arboreal environment.
C) Grasping hands and feet are not required for tree-living species, as many mammals lack opposability of digits.
D) All of the above.