There are three blocks, A, B and C. Block C is below A. Block B is to the right of C. Block A contains one small black square and one medium blue triangle. Near to, below and to the left of a big yellow square there is the small black square. Block B contains one medium blue triangle. Block C has one big black triangle. One big blue triangle is also in this block. Above the big black triangle is the big blue triangle.
Which object is below a big square? the small black square or the big black triangle?
the small black square  the big black triangle  both of them none of them