We have three blocks, A, B and C. Block A contains one medium black square and a big black circle. Above and to the left of the big black circle there is the medium black square. Block B is below block A. It contains a big blue square and a medium blue triangle. The big blue square is touching the bottom edge of this block. It is below and to the right of the medium blue triangle. Finally, there is block C to the left of block A. It has one big black circle.
What is below the medium black square? a big black circle that is in block C or a big black circle that is in block A?
big black circle  that is in block C big black circle  that is in block A both of them none of them