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