There are three blocks, A, B and C. Block C is above blocks A and B. Block A has one medium yellow triangle. Block B has a small blue circle. And block C has two big black triangles. Big black triangle number one is to the right of and below a small black triangle. It is touching the bottom edge of this block. This block also contains a big yellow triangle. It is near to, to the right of and below the small black triangle.
Which object is above a medium object? the big yellow triangle or the small black triangle?
the big yellow triangle  the small black triangle  both of them none of them