【单选题】

The author's primary purpose is to
A．(A) answer a theoretical question in the field of dinosaur thermoregulation

B．(B) discuss the current state of research in the field of dinosaur thermoregulation
C．(C) resolve a dispute in the field of dinosaur thermoregulation research
D．(D) predict a future crisis in the field of dinosaur thermoregulation research
E．(E) suggest some of the possible benefits of a technique in dinosaur thermoregulation research