€¢ Use the optional pendant mount accessory kit for open ceilings. For tile ceilings use the tile bridge and quick install integrated mounting arms. For plenum spaces use the plenum cover in addition to the integrated mounting arms.
The rough-in kit is for hard deck ceilings. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.