GWD 27 Q5 confirm the answer

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Q 5: Which of the following is included in the discussion of the cursorial hypothesis but not in the discussion of the arboreal hypothesis?

A.      A discussion of some of the features of Archaeopteryx

B. A description of the environment known to have been inhabited by bird ancestors

C.      A possible reason why bird ancestors might have been engaging in activities that eventually evolved into flight

D.      A description of the obvious features of animals with gliding ability

E.       An estimate of the amount of time it took for bird ancestors to evolve the kind of flapping flight that allowed them to become completely airborne