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