There are three blocks. Lets call them A, B and C. A medium yellow square and a medium blue square are in block A. The medium yellow square is below the medium blue square. Then, we have block B. It contains one medium blue square. Finally, we have block C to the right of block A and below block B. It contains one medium blue square and one medium black square. Below the medium black square is the medium blue square.
Which object is above a medium blue square? the medium blue square which is in block B or the medium blue square which is in block A?
the medium blue square  which is in block B the medium blue square  which is in block A both of them none of them