We have three blocks. We call them A, B and C. Block B is to the left of C. Block C is above A. Block A contains one medium black circle. Block B contains a big yellow square, one small yellow triangle and one medium black square. To the right of the medium black square there is the small yellow triangle. The medium black square is touching the bottom edge of this block. The big yellow square is above a medium blue circle. This object is above the small yellow triangle and the medium black square. And block C has a small black square.
What is below the small black square? a blue object or a medium black circle?
blue object medium black circle  both of them none of them