How Do Magnetic Anomaly Patterns on the Ocean Floor Best

Multiple Choice

How do magnetic anomaly patterns on the ocean floor best serve as evidence for seafloor spreading?

A) The symmetry on either side of mid-ocean ridges shows that new crust is created and then split apart.
B) Their patterns prove that the Earth's magnetic field reverses every few hundred years.
C) They show that island arc volcanism creates new oceanic crust at the mid-ocean ridges.
D) The symmetry on either side of mid-ocean ridges shows that transform boundaries are sliding boundaries.