In order of decreasing light-transmitting capabilities of materials, which is correct sequence?

==>  A piece-o-cake for light to get through.
==>  Quite easy for light to get through.
==>  Not very easy for light to get through.
==>  Somewhat difficult for light to get through.
==>  Pretty tough for light to get through.
==>  Virtually impossible for light to get through.
==>  Totally impossible for light to get through.

If this doesn't match any of the sequences that appear with your question,
then perhaps you could let us see the sequences that appear with your
question, and we could guide you toward the best choice from among them.

The magnets are probably damaged or there not strong enough to attached to the refrigerator

250✖️100 to get you answer