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