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