There are three blocks, A, B and C. Blocks B and C are to the right of A. Block A has a small blue circle and one big black square. The small blue circle is to the left of the big black square. Block B has one small blue circle. This block also has a big blue triangle. The small blue circle is to the left of the big blue triangle. Block C contains a small yellow triangle, one medium blue square and one medium yellow triangle. This block also has a small black circle. To the left of the medium blue square and the small black circle is the small yellow triangle. The medium blue square is above the medium yellow triangle. This shape is near to and to the left of the small black circle.
What is to the left of the big blue triangle? a small black circle or a small yellow triangle?
small black circle  small yellow triangle  both of them none of them