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