We have three blocks. We call them A, B and C. Block A has a medium blue square and a medium black square. The medium blue square is below the medium black square. Above block A is block B which contains two medium black squares. Medium black square number one is below medium black square number two. Finally, we have block C to the right of block A. It contains a medium blue square and a medium yellow square. Below the medium yellow square is the medium blue square.
Which object is below a medium black square? medium black square number one or the medium black square that is in block A?
medium black square  number one the medium black square  that is in block A both of them none of them