There are three blocks. We call them A, B and C. Block A is below C. Block C is to the left of B. Block A contains a big blue circle and a big blue triangle. One medium black triangle is also touching the bottom edge of this block. It is below the big blue triangle. Above the medium black triangle is the big blue circle. It is to the right of the big blue triangle. Block B contains a big blue triangle. Block C contains one medium blue circle, a big black square and a medium yellow circle. To the right of and near to the big black square is the medium blue circle.. Near to, above and to the left of the medium yellow circle there is the big black square.
What is to the left of the yellow shape? a thing which is touching the bottom edge of a block or a big black square?
thing which is touching the bottom edge of a block  big black square  both of them none of them