Question

One of the ways that a magnet's domain could become unaligned is which of the following?

A. by using it too much
B. by putting it near a magnet that repels it
C. by breaking it in two
D. by dropping it

Answer 1

D. by dropping it.
I don't think using a magnet too much would do that.
If you put two magnets with their like poles together, you can feel a tension or force.  If you break it, then you just have two pieces of a magnet, but it still works.  So, dropping it seems like the most likely answer.  

Answer 2

The ways that a magnet's domain could become unaligned  is by breaking it in two which is the option C