There are three blocks. We call them A, B and C. There is a medium yellow square in block A. One medium blue square is also in this block. The medium yellow square is touching the bottom edge of this block. It is below the medium blue square. To the left of block A we have block B with a medium black square in it. Finally, there is block C which is below block B. It has a medium black square and one medium blue square. Below the medium blue square there is the medium black square.
Which object is below a medium black 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