There are three blocks, A, B and C. Block A contains a medium black square and a medium yellow square. Below the medium yellow square is the medium black square. To the left of block A there is block B with one medium blue square in it. Below block A there is block C with one medium yellow square in it. This block also has a medium blue square. Below the medium blue square is the medium yellow square.
Which object is below a medium yellow square? the medium blue square that is in block B or the medium blue square that is in block C?
the medium blue square  that is in block B the medium blue square  that is in block C both of them none of them