There are three blocks, A, B and C. Block B is below block C and to the left of block A. Block A contains one medium blue triangle. Block B contains one big blue circle, one big yellow circle and one big blue triangle. The big blue circle is touching the right edge of this block. It is to the right of the big yellow circle and the big blue triangle. The big yellow circle is below the big blue triangle. And block C contains one medium yellow triangle.
What is below the medium yellow triangle? a medium blue triangle or a big yellow circle?
medium blue triangle  big yellow circle  both of them none of them