We have three blocks, A, B and C. Block B is to the left of A and block A is above C. Block A has a big yellow circle. Block B has one big black circle, one medium blue circle and a small black square. The big black circle is below the medium blue circle and the small black square. And block C contains one small blue triangle.
Which object is below a big circle? the black square or the small blue triangle?
the black square  the small blue triangle  both of them none of them