There are three blocks, A, B and C. Block A is to the right of C. Block B is above A. Block A contains one big blue triangle. A small yellow square is near to a small black triangle. The big blue triangle is touching the bottom edge of this block. It is below the small black triangle and the small yellow square. Block B contains one big black circle and a big black square. The big black circle is touching the bottom edge of this block. It is below the big black square. And block C contains a small black triangle and one medium yellow triangle. The small black triangle is near to the medium yellow triangle. The medium yellow triangle is touching the top edge of this block.
What is to the left of the blue shape? a medium yellow triangle that is touching the top edge of a block or a big black square?
medium yellow triangle  that is touching the top edge of a block  big black square  both of them none of them