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