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