We have three blocks. Lets call them A, B and C. A medium blue square is in block A. A medium yellow square is touching the bottom edge of this block. This object is below the medium blue square. To the left of block A we have block B with a medium blue square and one medium yellow square in it. Below the medium yellow square there is the medium blue square. Finally, we have block C which is below block A. It contains one medium yellow square.
Which object is below a medium blue square? the medium yellow square that is in block B or the medium yellow square which is in block C?
the medium yellow square  that is in block B the medium yellow square  which is in block C both of them none of them