There are three blocks, A, B and C. Block C is to the left of A and block A is above B. Block A contains a medium yellow circle. There is also one small blue circle in this block. Below the small blue circle is the medium yellow circle. Block B contains one big blue triangle and a big blue circle. It also has a big yellow circle. The big blue triangle is touching the right edge of this block. It is to the right of the big blue circle. Below the triangle which is to the right of the big blue circle there is the big yellow circle. This shape is to the right of the big blue circle. And block C has one medium black triangle.
What is below the medium yellow circle? a medium black triangle or a big blue circle?
medium black triangle  big blue circle  both of them none of them