isabella was standing directly below a power line, and her compass failed to give an accurate reading.

how could she explain why her compass was not working?

a

a compass works with a magnetic field, and the electric current running through the lines above it would interfere with the magnetic field.

b

the compass works because of an electric field, and the electric current running through the lines above would interfere with the electric field.

c

the compass works because of a gravitational field, and the magnetic current running through the lines above would interfere with the gravitational field.

d

a compass works because of a magnetic field, and the magnetic current running through the power lines above it would interfere with the magnetic field below it.