similarities in bone structure seasonal shifts in food supply consumption of the same plant species tree rings indicating the return of a similar climate
I gave my students this multiple choice question: Researchers are investigating whether dinosaurs were endothermic like birds. Which evidence from the fossil record could be effectively compared with modern day evidence to support this hypothesis?

Only one answer is correct among these 4 choices:
- similarities in bone structure
- seasonal shifts in food supply
- consumption of the same plant species
- tree rings indicating the return of a similar climate

Could you tell me which one is correct?

similarities in bone structure