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