There are three blocks. We call them A, B and C. Block A contains three medium black squares. Below medium black square number two and medium black square number three there is medium black square number one. Below medium black square number three is medium black square number two. Then, we have block B. It contains one medium yellow square and one medium black square. The medium yellow square is below the medium black square. Finally, above block B we have block C which is to the right of block A. It has a medium yellow square.
Which object is below a medium yellow square? medium black square number one or the medium black square which is in block B?
medium black square  number one the medium black square  which is in block B both of them none of them