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