There are three blocks, A, B and C. One medium black square is in block A. Below a medium blue square is the medium black square. Above block A we have block B with one medium yellow square in it. Below block A there is block C which has one medium black square and a medium yellow square. The medium black square is below the medium yellow square.
Which object is above a medium black square? the medium yellow square that is in block C or the medium yellow square that is in block B?
the medium yellow square  that is in block C the medium yellow square  that is in block B both of them none of them