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