There are three blocks, A, B and C. Two medium yellow squares are in block A. Medium yellow square number one is touching the bottom edge of this block. Below a medium blue square and medium yellow square number two is medium yellow square number one. Below medium yellow square number two is the medium blue square. Block B is below block A. It has a medium blue square and one medium black square. The medium blue square is below the medium black square. Finally, we have block C which is below block B. It contains one medium yellow square and one medium blue square. The medium yellow square is below the medium blue square.
What is below the black object? a medium yellow square that is in block C or a medium yellow square number two?
medium yellow square  that is in block C medium yellow square  number two both of them none of them