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