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