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