There are three blocks, A, B and C. One medium black square is in block A. Then, we have block B. It contains one medium blue square. Block C is above block A and to the right of block B. It contains one medium yellow square. Below the medium yellow square there is a medium black square. A medium blue square is below the medium object which is below the medium yellow square. It is touching the bottom edge of this block. It is below the medium yellow square.
What is above the thing 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