How do magnetic stripes on the ocean floor serve as evidence forseafloor spreading?

Select one: a. Their symmetry on either side of the mid-oceanridge shows that new crust is created, then split.

b. Their symmetry on either side of mid-ocean ridges shows thattransform boundaries are sliding boundaries.

c. They show that island arc volcanism creates new oceanic crustat the mid-ocean ridges.

d. Their patterns show that Earth’s magnetic field reversesevery few hundred years, on average