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