There are three blocks. We call them A, B and C. One small blue triangle is in block A. Below block A there is block B with one medium yellow square, a medium yellow triangle and a medium blue triangle in it. The medium yellow triangle is near to the medium blue triangle. The medium yellow square is above the medium yellow triangle. This shape is touching the right edge of this block. It is to the right of and above the medium blue triangle. To the left of block A there is block C. It has one small black circle.
What is to the left of the small blue triangle? a black circle or a medium blue triangle?
black circle  medium blue triangle  both of them none of them