We have three blocks, A, B and C. Three medium blue squares are in block A. It also contains one medium black square. Medium blue square number two is below medium blue square number three. This object is below the medium black square. Medium blue square number one is below medium blue square number three , the medium black square and medium blue square number two. Then, we have block B with one medium yellow square and one medium blue square in it. Below the medium blue square is the medium yellow square. Finally, to the left of block A we have block C. It is to the left of block B. It contains one medium blue square.
Which object is to the right of a medium blue square? the medium yellow square or the medium black square?
the medium yellow square  the medium black square  both of them none of them