Rory puts a large book between two magnets. The magnets do not attract each other through the book. Which is the most likely reason?

A.
The book is taking away the magnetic poles.

B.
The book is changing the direction of the magnetic fields.

C.
The book is acting like a magnet that repels the other magnets.

D.
The book is stopping the magnets from touching each other's magnetic fields.

D. The book is stopping the magnets from touching each other's magnetic fields.