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