We have three blocks, A, B and C. Block A is to the right of and B is below C. Block A contains a medium black triangle. Block B contains a medium black square and a medium black circle. The medium black square is to the right of and below the medium black circle. Block C contains one small black triangle and a small blue triangle. There is also one medium yellow square touching the right edge of this block. One big blue circle is also touching the bottom edge of this block. It is far from and below the medium yellow square. Above the blue shape which is far from the medium yellow square is the small black triangle. The small blue triangle is to the left of the medium yellow square. The small black triangle is below the medium yellow square.
Which object is to the left of a medium black triangle? the small black triangle or the small blue triangle?
the small black triangle  the small blue triangle  both of them none of them