Okay, so schools have to display "a durable poster or framed copy" which meets the given criteria. (I read "a" as meaning the school isn't forced to display 10

Okay, so schools have to display "a durable poster or framed copy" which meets the given criteria. (I read "a" as meaning the school isn't forced to display 10,000 such posters, should they be donated. Which a prankster totally would do.) What happens if each of 100 organizations donates a poster? What size does the poster need to be? When does a poster get taken down? Can it be replaced with another poster, should the school administration prefer the other one? What if I donate a 1"x1" poster to a school? If it doesn't currently have one, will they be forced to hang it in a conspicuous place? Can the administration use a 1"x1" donation as a reason to take down a larger one? What if the poster is 40×60 inches, but where the motto is in 6 point text?