There are three blocks, A, B and C. Block A contains a big yellow square. Then, we have block B with a small black circle and one small blue square in it. Below the small blue square which is near to and above a medium blue triangle is the small black circle. Finally, to the left of block A we have block C. It is above block B. It contains a small black triangle. To the right of and above the small black triangle there is a medium black circle.
What is below the small black triangle? a medium blue triangle or a medium black circle?
medium blue triangle  medium black circle  both of them none of them