The correct answer is 4.
When displaying artworks you need to take into consideration how the elements could possibly damage the art. Artworks are fragile and need to be preserved. Ultraviolet rays from the sun fades paint pigments and the painting will lose it's original colors and vibrancy therefore keeping it out of direct sunlight is best. High temperatures and humidity will damage the painting making it curl or peel or moisture will build up on the surface damaging the paint therefore controlling the temperature and humidity will keep this from happening.
The very last one to make it equal
You acquire a Copyright. This is done by registering your song with the U.S. Copyright Office if you live in the U.S.
I believe it would be a pattern?
