There are three blocks. We call them A, B and C. Block A is below C and block C is above B. Block A has one small blue square. Block B has a big black triangle, a small black circle and a medium black square. Above the medium black square is the big black triangle. There is also one big blue circle in this block. It is to the left of and far from the medium black square. The medium black square is touching the bottom edge of this block. The small black circle is above and to the left of the medium black square. Block C contains a medium black square, a big yellow circle and a medium yellow square. The medium black square is below a small blue square. Below the big yellow circle there is a medium blue square. Above the medium yellow square there is the big yellow circle. Below the small blue square there is the medium yellow square. This shape is touching the bottom edge of this block. The small blue square is touching the right edge of this block.. The big yellow circle is below and to the left of the small blue square.
Which object is above a medium black square? the medium yellow square or the big blue circle?
the medium yellow square  the big blue circle  both of them none of them