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