We have three blocks, A, B and C. A medium blue square is in block A. Below a medium black square there is the medium blue square. Below block A we have block B with one medium yellow square in it. Finally, there is block C which is below block A. It contains one medium yellow square. The medium yellow square is below a medium blue square.
Which object is below a medium square? the medium blue square that is in block C or the medium blue square which is in block A?
the medium blue square  that is in block C the medium blue square  which is in block A both of them none of them