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