There are three blocks. We call them A, B and C. Block C is above A. Block A is to the left of B. Block A has one medium blue triangle and one small blue square. To the right of the small blue square there is the medium blue triangle. The small blue square is touching the bottom edge of this block. Block B contains a big blue triangle. And block C contains one big blue square. Above and to the left of the big blue square there is a medium black square.
Which object is to the left of a big blue square? the medium black square or the small blue square that is touching the bottom edge of a block?
the medium black square  the small blue square  that is touching the bottom edge of a block  both of them none of them