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