There are three blocks. We call them A, B and C. One medium yellow square and a medium blue square are in block A. The medium yellow square is below the medium blue square. Block B is above block A. It contains one medium blue square. Below block A there is block C. It has a medium black square and a medium yellow square.. The medium black square is touching the bottom edge of this block. It is below the medium yellow square.
Which object is above a medium square? the medium blue square that is in block B or the medium blue square that is in block A?
the medium blue square  that is in block B the medium blue square  that is in block A both of them none of them