There are two blocks, A and B. There are a medium black square and a medium yellow square in block A. The medium black square is touching the bottom edge of this block. This shape is below the medium yellow square. To the left of block A there is block B. It has a medium blue square, a medium yellow square and one medium black square. The medium blue square is touching the bottom edge of this block. Below the medium black square there is the medium yellow square. Below the medium black square and the medium yellow square there is the medium blue square.
Which object is below a medium black square? the medium yellow square that is in block A or the medium yellow square that is in block B?
the medium yellow square  that is in block A the medium yellow square  that is in block B both of them none of them