There are three blocks. We call them A, B and C. Blocks A and C are to the left of B. Block A has a medium black triangle. Block B has a small yellow circle. A small black square is also in this block. It is above the small yellow circle. A small black circle is to the left of the small yellow circle and the small black square. And block C contains one small blue triangle. To the left of a medium blue circle is the small blue triangle.
Which object is to the left of a small black circle? the small blue triangle or the medium blue circle?
the small blue triangle  the medium blue circle  both of them none of them