Which of the following is wrong according to Para

Which of the following is wrong according to Paragraph 3?

A.Only 80 percent of marine genera survived the global warming caused by the Permian extinction.

B.It took 5 million years for the planet to recover from the Permian extinction.

C.The huge amount of volcanic activity and乡obal warming 60 million years ago did not lead to mass extinction.

D.The cause of dinosaurs’extinction has remained a controversial issue.