问题详情

In 2012, Dr. Schwaitzers discovery of the same protein in dinosaurs and modern birds could possibly prove

A．dinosaurs might be the probable ancestors of modern birds.

B．soft-tissue material could have come from modern bacteria.

C．fossils should be protected from bacterial contamination.

D．organic molecules of dinosaurs could survive in fossils.

请帮忙给出正确答案和分析，谢谢！