There are two blocks, A and B. There are one big blue triangle, a medium blue circle and a big black square in block A. This block also contains one medium black circle. It also contains one small black square. Below the small black square , the medium blue circle and the big black square is the medium black circle. The big blue triangle is touching the right edge of this block. Below block A we have block B which has a medium blue circle.
Which object is above a medium blue circle? the small black square or the medium black circle?
the small black square  the medium black circle  both of them none of them