There are three blocks. Lets call them A, B and C. Block B is above A. Block A is below C. Block A has a medium black square, one medium yellow square and a medium blue square. The medium black square is below the medium yellow square and the medium blue square. The medium yellow square is below the medium blue square. Block B contains a medium blue square. And block C has one medium yellow square and a medium black square. The medium yellow square is touching the bottom edge of this block. It is below the medium black square.
Which object is below a medium yellow 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