There are two blocks, A and B. Block A has one big black square. A small yellow triangle is below the big black square. Below block A there is block B with one medium black triangle, a small yellow triangle and a big black circle in it. This block also contains one big black square , a small yellow circle and a small blue triangle. To the right of the small yellow circle is the medium black triangle.. Near to and below the small blue triangle there is the big black square. To the right of and below the small blue triangle is the small yellow triangle.
Which object is below a small yellow triangle? the big black circle or the medium black triangle?
the big black circle  the medium black triangle  both of them none of them