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