We have three blocks, A, B and C. Block A contains one big yellow square. To the left of block A we have block B. It contains a small blue square and a medium blue triangle. The small blue square is near to the medium blue triangle. Finally, we have block C. It is above block A. It has one small blue circle and one small black triangle. The small blue circle is far from the small black triangle.
Which object is to the left of a yellow square? the small black triangle or the medium blue triangle?
the small black triangle  the medium blue triangle  both of them none of them