There are three blocks. We call them A, B and C. There are one medium yellow square and a medium blue square in block A. The medium yellow square is below the medium blue square. Below block A we have block B which contains a medium yellow square. This block also has a medium blue square.. Below the medium blue square there is the medium yellow square. Finally, there is block C to the left of block A. It has a medium black square and a medium blue square. Below a medium yellow square there is the medium black square. The medium blue square is below the medium yellow square. Below the medium blue square there is the medium black square.
Which object is below a medium blue 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