There are three blocks. We call them A, B and C. There is one medium black square in block A. Block B is to the right of block A. It contains one medium blue square. To the left of block B there is block C. It has two medium blue squares. Medium blue square number one is touching the bottom edge of this block. It is below medium blue square number two and a medium yellow square. The medium yellow square is below medium blue square number two.
Which object is to the left of a medium blue square? the medium yellow square or the black shape?
the medium yellow square  the black shape both of them none of them