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