Percussion Project

Ok, so, I sat down today to figure out exactly what I was doing for this percussion project, but I looked at the sheet from the website and was confused. Are we only allowed to do either a multiple percussion solo: a piece to be played by one person with multiple instruments, or a piece for a percussion ensemble with a minimum of 8 instruments? In other words, we can't have a piece with three instuments being played at the same time by three different people? If anyone could clarify, it would be greatly appreciated.