We have three blocks. We call them A, B and C. Block A contains one medium black triangle and a medium black square. To the left of the medium black square and a big yellow circle is the medium black triangle. Then, we have block B. It has one small black square. Finally, we have block C which is above block A and block B is above it. It contains one small blue circle.
What is below the small black square? a small blue object or a big yellow circle?
small blue object big yellow circle  both of them none of them