There are three blocks, A, B and C. Block A has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. A medium black square is below the medium object which is below medium yellow square number two. It is below medium yellow square number two. Block B is below block A. It has one medium blue square and a medium black square. The medium blue square is touching the bottom edge of this block. It is below the medium black square. To the left of block B there is block C with one medium yellow square and a medium blue square in it. The medium yellow square is below the medium blue square.
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