We have three blocks, A, B and C. Block A contains one medium yellow square. The medium yellow square is touching the bottom edge of this block. This block also has a medium black square. The medium yellow square is below the medium black square. Then, there is block B which contains one medium black square. Finally, above block B we have block C which is below block A. It has two medium yellow squares. Below medium yellow square number one and medium yellow square number two there is a medium blue square. Medium yellow square number one is below medium yellow square number two.
What is below the thing that is touching the bottom edge of a block? a medium blue square or a medium yellow square?
medium blue square  medium yellow square  both of them none of them