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