There are three blocks. We call them A, B and C. Block A has a medium blue circle. Block B is above block A. It contains a medium blue triangle. Finally, there is block C which is below block B. It contains a small blue square and one small black circle. One big yellow circle is also in this block. The small blue square is to the left of the big yellow circle and the small black circle. Above the big yellow circle there is the small black circle.
Which object is below a medium blue thing? the small black circle or the big thing?
the small black circle  the big thing both of them none of them