Question

How does the ocean floor keep track of magnetic fields?

A. There are magnets in the ocean floor

B. All rocks act like magnets

C. Basalt is iron-rich and responds to magnetic fields

D. Being underwater makes the rocks respond to magnetic fields.

Answer 1

i would believe its C also:)

Answer 2

C.) Basalt is Iron-rich and responds to magnetic fields.
I Hope This Helps! (^_^)