We have three blocks, A, B and C. Block A is below and C is to the left of B. Block A has a small yellow circle and a big black circle. To the left of and above the big black circle there is the small yellow circle. The big black circle is touching the right edge of this block. Block B contains one medium yellow triangle. And block C contains one medium yellow circle, a big yellow triangle and one small black square. Above the big yellow triangle there is the medium yellow circle. It is touching the right edge of this block. It is near to and to the right of the small black square. The big yellow triangle is to the right of the small black square.
Which object is to the left of a medium yellow triangle? the black square or the small yellow circle?
the black square  the small yellow circle  both of them none of them