There are three blocks, A, B and C. Block B is to the right of A. Block C is above B. Block A contains one small blue square and a medium blue square. Far from, to the right of and below a big black square is the small blue square. Block B has a big black square, one small yellow square and one medium blue triangle. To the right of the medium blue triangle which is below and touching a big yellow circle there is the big black square. It is touching the bottom edge of this block. The small yellow square is above and to the right of the medium blue triangle. The medium blue triangle is touching the bottom edge of this block. And block C has one small blue triangle.
What is below the small blue triangle? a circle or a big black square that is touching the bottom edge of a block?
circle  big black square  that is touching the bottom edge of a block  both of them none of them