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