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