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