We have three blocks, A, B and C. Block A contains a small black triangle. Block B is above block A. It has a big yellow circle. To the right of block A there is block C with one small blue square and a medium yellow circle in it. There are also a medium yellow square and one big blue circle in this block. The medium yellow square is below and to the right of the medium yellow circle. Below and to the right of the medium yellow circle is the big blue circle. The small blue square is to the left of the medium yellow circle.
What is below the medium yellow circle? a big blue circle or a black triangle?
big blue circle  black triangle  both of them none of them