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