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