There are three blocks, A, B and C. Block C is to the left of and B is to the right of A. Block A has a small black square. Block B has one medium black circle. To the left of a big yellow square there is a small yellow square. The big yellow square is touching the right edge of this block. It is far from and above the medium black circle. And block C contains a medium black square. A medium black triangle is to the left of and near to the medium black square.
Which object is to the left of a big shape? the medium black square or the small black square?
the medium black square  the small black square  both of them none of them