单项选择题

The author's primary purpose is to

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