There are three blocks. We call them A, B and C. Block C is below block B and to the left of block A. Block A contains one big blue square. The big blue square is touching the right edge of this block. This block also has a medium black circle. The big blue square is to the right of the medium black circle. Block B contains one small blue triangle, a medium blue circle and a big black square. Above and near to a small black triangle there is the medium blue circle. It is below the big black square. The small blue triangle is touching the right edge of this block. This object is to the right of the small black triangle and the big black square. And block C has one big black circle and a small black triangle. The big black circle is below and near to the small black triangle.
What is below the big black square? a medium blue circle or a small blue triangle?
medium blue circle  small blue triangle  both of them none of them