There are three blocks. We call them A, B and C. Block C is to the left of A. Block B is below C. Block A has one small yellow circle, a medium black triangle and one small black circle. The small yellow circle is above a small black triangle. This shape is to the left of the medium black triangle which is above the small black triangle and the small black circle. The small black circle is above the small black triangle. Block B contains a small yellow square. And block C has one medium black triangle.
Which object is to the right of a medium black triangle? the small black circle or the small yellow square?
the small black circle  the small yellow square  both of them none of them