There are three blocks, A, B and C. Block C is above block A and to the left of block B. Block A contains one medium yellow triangle, one big black circle and a big yellow triangle. The big black circle is near to, below and to the left of the big yellow triangle. Block B has a big blue triangle. And block C has one medium blue circle.
What is below the medium blue circle? a big yellow triangle or a big blue triangle?
big yellow triangle  big blue triangle  both of them none of them