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