There are two blocks, A and B. Block A is below B. Block A contains a small yellow triangle and one medium black square. The small yellow triangle is touching the bottom edge of this block. It is below and near to the medium black square. Block B has a small blue circle, one small black triangle and a big yellow circle. Above, to the right of and near to the small black triangle there is the small blue circle.
What is below the small black triangle? a medium black square or a small blue circle?
medium black square  small blue circle  both of them none of them