There are three blocks, A, B and C. Block C is to the left of B and block A is to the left of C. Block A contains one medium black circle. There is also one medium yellow circle in this block. To the right of, near to and below the medium yellow circle is the medium black circle. Block B has a small black square. This block also has one big yellow circle. To the left of the small black square is the big yellow circle. Block C has a big black square, one big blue square and a small black square. One big black circle is also in this block. Below the big black circle , the big blue square and the small black square is the big black square. The small black square is above the big black circle.
Which object is to the left of a small black square? the big black circle or the big blue square?
the big black circle  the big blue square  both of them none of them