TOEFL Reading: ETS-TOEFL阅读机经 - 58OWE0CS2DK4EY3SL$

According to paragraph 3, the patterns of wear found on the teeth of young dinosaurs may indicate which of the following? A. Baby dinosaurs were eating food brought to them by their parents. B. Early development of jaw and teeth varied according to a dinosaur's size. C. Dinosaurs went foraging for food at an early age. D. Baby dinosaurs did not begin to eat solid food until after they left the nest.