There are three blocks. We call them A, B and C. Block B is below C and block C is below A. Block A has a medium yellow square. Block B has one medium black square. Block C contains three medium yellow squares. It also has one medium black square. Below medium yellow square number three , the medium black square and medium yellow square number two there is medium yellow square number one. It is touching the bottom edge of this block. Medium yellow square number two is below medium yellow square number three and the medium black square.
Which object is above a medium black square? medium yellow square number three or the medium yellow square that is touching the bottom edge of a block?
medium yellow square  number three the medium yellow square  that is touching the bottom edge of a block  both of them none of them