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