We have three blocks, A, B and C. There is a medium yellow square in block A. Block B is to the left of block A. It has a medium black square. It also has a medium blue square. The medium black square is touching the bottom edge of this block. The medium blue square is below a medium yellow square. The medium black square is below the medium blue square and the medium yellow square. To the right of block A there is block C. It contains a medium black square.
What is above the object which is touching the bottom edge of a block? a medium yellow square that is in block B or a medium yellow square that is in block A?
medium yellow square  that is in block B medium yellow square  that is in block A both of them none of them