There are two blocks. Lets call them A and B. Block A is above B. Block A has a medium blue square and one medium yellow square. This block also contains a medium black square. The medium blue square is touching the bottom edge of this block. This shape is below the medium yellow square. It is below the medium black square. Below the medium black square there is the medium yellow square. Block B contains one medium blue square and one medium yellow square. The medium blue square is below the medium yellow square.
Which object is above a medium blue square? the medium black square or the blue shape that is touching the bottom edge of a block?
the medium black square  the blue shape that is touching the bottom edge of a block  both of them none of them