We have three blocks. We call them A, B and C. Block B is above A and block A is above C. Block A has one small blue square and one big black square. The small blue square is touching the top edge of this block. It is above, to the left of and far from the big black square. Block B has one medium blue triangle, a medium yellow square and one big black circle. Above a medium black circle there is the medium blue triangle. The medium yellow square is above a medium yellow triangle and the medium black circle. The medium black circle is touching the right edge of this block. The medium yellow triangle is touching the bottom edge of this block. The medium blue triangle is touching the right edge of this block. It is above and far from the medium yellow triangle. And block C contains one medium black circle.
What is below the medium blue triangle? a small blue square which is touching the top edge of a block or a big black square?
small blue square  which is touching the top edge of a block  big black square  both of them none of them