There are three blocks. We call them A, B and C. There are a small yellow triangle and a medium yellow triangle in block A. The small yellow triangle is to the right of the medium yellow triangle. Block B is above block A. It contains one small black circle. To the right of block B there is block C. It contains one medium black circle, a small blue triangle and a small yellow triangle. The medium black circle is touching the right edge of this block. A big blue circle is touching the right edge of this block. The medium black circle is above the small blue triangle. The small yellow triangle is touching the bottom edge of this block. Near to and below the small blue triangle is the big blue circle. This shape is to the right of the small yellow triangle. The medium black circle is above the small yellow triangle.
What is to the left of the thing that is touching the bottom edge of a block? a small black circle or a small blue triangle?
small black circle  small blue triangle  both of them none of them