Why Is the Oldest Seafloor a No More Than 280

Multiple Choice

Why is the oldest seafloor a no more than 280 million years in age?

A) Earth is only 280 million years old.
B) The ocean floor is pushed up onto continental material during plate collisions.
C) The ocean floor subducts during plate collisions,constantly consuming older sea floor.
D) Hot spots continuously destroy the ocean floor.