There are three blocks. We call them A, B and C. Block B is above A. Block C is above B. Block A contains one medium yellow square. Block B contains a medium black square, a medium blue square and a medium yellow square. The medium black square is touching the bottom edge of this block. The medium blue square is below the medium yellow square. Below the medium yellow square and the medium blue square is the medium black square. Block C has a medium yellow square.
Which object is above a medium yellow square? the medium black square which is touching the bottom edge of a block or the blue shape?
the medium black square  which is touching the bottom edge of a block  the blue shape both of them none of them