Significant Mass Extinctions Occurred During Which of the Following Peroids

Significant mass extinctions occurred during which of the following peroids?

A) Pleistocene, Ordovician, and Triassic
B) Ordovician, Triassic, and Jurassic
C) Triassic, Permian, and Cretaceous
D) Triassic, Permian, Cretaceous, Pleistocene, Ordovician, and Devonian
E) Ordovician, Triassic, Jurassic, Silurian, Eocene, and Oligocene The Triassic, Permian, Cretaceous, Pleistocene, Ordovician, and Devonian periods all ended with mass extinction events. However, most scientists also agree that mass extinctions continue throughout the modern Holocene epoch due to the activities of human civilization.