We have two blocks. We call them A and B. A medium blue square is in block A. Block B is below block A. It contains one big yellow square, a small yellow square and one medium black square. The big yellow square is above a medium yellow circle. Near to, to the left of and above the medium yellow circle is the medium black square. To the left of the small yellow square there is the big yellow square. The medium yellow circle is touching the right edge of this block.
What is below the blue object? a medium black square or a small yellow square?
medium black square  small yellow square  both of them none of them