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