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