There are three blocks. We call them A, B and C. There are a small blue circle, one big blue square and a medium blue triangle in block A. To the right of and above the medium blue triangle is the small blue circle. The big blue square is touching the left edge of this block. It is to the left of the medium blue triangle. Above block A there is block B. It contains one medium blue square. Above block B there is block C with a small blue triangle in it.
Which object is above a big object? the small blue triangle or the medium blue triangle?
the small blue triangle  the medium blue triangle  both of them none of them