There are three blocks, A, B and C. Block A contains one medium blue circle. Above block A there is block B. It contains one small yellow triangle. Above and to the right of a big yellow circle is the small yellow triangle. Finally, we have block C to the left of block A. It contains a big blue square. A big black triangle is near to, below and to the left of a medium black triangle. The big blue square is near to the triangle which is near to the medium black triangle. It is touching the right edge of this block. This object is below the medium black triangle.
What is above the medium blue circle? a big yellow circle or a medium black triangle?
big yellow circle  medium black triangle  both of them none of them