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