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