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