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