There are three blocks. Lets call them A, B and C. Two medium black squares and two other medium yellow squares are in block A. Medium black square number one is touching the bottom edge of this block. Medium black square number two is below medium yellow square number two. Below medium yellow square number two and medium black square number two is medium yellow square number one.. Medium black square number one is below the yellow object which is below medium black square number two. This object is below medium yellow square number two. Block B is to the right of block A. It has a medium black square and a medium blue square. The medium black square is touching the bottom edge of this block. It is below the medium blue square. Finally, we have block C which is to the right of block A. It contains a medium yellow square. It also contains one medium black square. Below the medium yellow square is the medium black square.
Which object is to the right of a medium black square? the medium yellow square that is in block C or medium yellow square number one?
the medium yellow square  that is in block C medium yellow square  number one both of them none of them