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