There are two blocks, A and B. Block A has one small yellow square. Block B is below block A. It has one big black square and one medium black circle. Near to a small yellow triangle and the big black square is a big yellow square. The big black square is above and to the left of the medium black circle. The medium black circle is touching the right edge of this block.
Which object is below a small yellow square? the big black square or the big yellow square?
the big black square  the big yellow square  both of them none of them