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