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