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