There are three blocks, A, B and C. Block A is to the right of blocks B and C. Block A contains one big black square. It also contains a big yellow square. Above and to the right of the big black square there is the big yellow square. Block B has one small black square. Block C has a small black triangle, one big black triangle and a medium blue square. The medium blue square is touching the right edge of this block. To the left of and below the medium blue square is the small black triangle. To the left of the medium blue square is the big black triangle.
Which object is to the left of a big square? the medium blue square which is touching the right edge of a block or the big black triangle?
the medium blue square  which is touching the right edge of  a block  the big black triangle  both of them none of them