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