We have three blocks. We call them A, B and C. Blocks A and B are to the right of C. Block A has one small black square. There is also one big black square in this block. Above the big black square there is the small black square. Block B contains one big blue circle. And block C has a big black circle, one medium yellow triangle and a medium black square. The big black circle is touching the bottom edge of this block. The medium yellow triangle is to the left of the medium black square. The big black circle is to the right of the triangle which is to the left of the medium black square. It is to the left of the medium black square.
What is to the left of the big black square? a small square or a yellow object?
small square  yellow object both of them none of them