There are three blocks, A, B and C. There are one big blue circle, a medium black triangle and one small blue triangle in block A. The big blue circle is below and to the right of the small blue triangle which is to the left of a medium black square. Near to and below the medium black square is the medium black triangle. Block B is below block A. It has two big blue circles. Below big blue circle number two there is big blue circle number one. Big blue circle number two is touching the top edge of this block. Above block B there is block C which has one small yellow triangle.
Which object is above a big blue circle? the medium black square or the yellow shape?
the medium black square  the yellow shape both of them none of them