There are three blocks, A, B and C. There are two small yellow circles in block A. Small yellow circle number one is to the left of a small blue circle. Above the small blue circle and a big black circle there is small yellow circle number two. This block also has a medium black triangle. Then, we have block B with one medium blue square in it. Block C is above block A and to the left of block B. It contains one small blue circle.
Which object is below a small blue circle? the big black circle or the medium blue square?
the big black circle  the medium blue square  both of them none of them