There are two blocks, A and B. Block A is below B. Block A has a small black triangle and a medium blue triangle. The small black triangle is above the medium blue triangle and a big black square. Block B has a medium yellow circle and one big black square. To the right of the big black square there is the medium yellow circle. The big black square is touching the left edge of this block.
What is above the blue shape? a small black triangle or a big black square?
small black triangle  big black square  both of them none of them