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