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