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