Which of the following is (are) an example of a variable that is inevitably highly predictive about the details of the anatomy and behavior of any newly evolved animal we encounter in the world today (including ourselves)?

a. The anatomy and behavior of that animal's immediate ancestors.

b. The details of the local environment in which the animal has evolved to live.

c. The details of the anatomy of unrelated animals living on other continents.

d. all of the above e. a. and b.