There are three blocks. Lets call them A, B and C. A medium blue square, a medium yellow square and a medium black square are in block A. The medium blue square is below the medium black square. It is touching the bottom edge of this block. It is below the medium yellow square. Below the medium black square there is the medium yellow square. Block B is below block A. It has one medium blue square. The medium blue square is touching the bottom edge of this block. This block also has a medium black square. The medium blue square is below the medium black square. To the right of block B there is block C which has two medium yellow squares. A medium blue square is below medium yellow square number one and medium yellow square number two. Below medium yellow square number two is medium yellow square number one.
Which object is below a medium yellow square? the medium black square that is in block B or the medium black square which is in block A?
the medium black square  that is in block B the medium black square  which is in block A both of them none of them