There are three blocks, A, B and C. One medium yellow square is in block A. There is also one medium blue square in this block. The medium blue square is below the medium yellow square. Then, there is block B with one medium blue square in it. Finally, to the right of block B we have block C which is above block A. It has a medium blue square. Below a medium black square there is the medium blue square.
What is to the left of the black shape? a medium yellow square or a medium blue square?
medium yellow square  medium blue square  both of them none of them