We have three blocks, A, B and C. Block C is to the left of block A and it is below block B. Block A has a small black square. It also contains one big black square. The small black square is touching the bottom edge of this block. This shape is below the big black square. Block B has one medium yellow circle. And block C contains a small yellow square and a small blue circle. There is also one medium yellow triangle touching the bottom edge of this block. Below the small blue circle and the small yellow square is the medium yellow triangle.
Which object is below a big thing? the small black square or the small yellow square?
the small black square  the small yellow square  both of them none of them