There are three blocks, A, B and C. A medium black square and a medium blue square are in block A. The medium black square is below the medium blue square. Block B is above block A. It has one medium yellow square and one medium blue square. The medium yellow square is below the medium blue square. Below block B there is block C. It has a medium blue square.
Which object is below 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