We have three blocks, A, B and C. Block B is above blocks C and A. Block A has one medium black circle. Block B has a big yellow circle. And block C contains a small blue triangle and a small blue circle. This block also contains a big yellow triangle. The small blue circle is above the big yellow triangle. To the left of and below the small blue circle is the small blue triangle.
Which object is below a big yellow circle? the medium black circle or the small blue circle?
the medium black circle  the small blue circle  both of them none of them