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