Based on the Figure,what Conclusion Could the Authors Deduce from the Graph

Based on the figure,what conclusion could the authors deduce from the graph?

A) Nasal cross-section increases with mass.
B) Nonavian reptiles generally have lower nasal cross-sections than mammals of the same mass.
C) Nonavian reptiles generally have lower nasal cross-sections than birds of the same mass.
D) Dinosaurs had some of the highest nasal cross-sections of all nonavian reptiles.
E) All of the answer choices are correct.