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