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