There are two blocks, A and B. There is a big black circle in block A. The big black circle is touching the bottom edge of this block. A small yellow circle is touching the bottom edge of this block. The big black circle is near to and to the right of the small yellow circle. Below block A there is block B. It contains one big black square and a medium yellow circle. A small blue triangle is touching the bottom edge of this block. It is to the left of and near to the big black square. It is below the medium yellow circle.
What is below the big black circle? a small yellow circle or a black square?
small yellow circle  black square  both of them none of them