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