There are three blocks. We call them A, B and C. Block A is to the left of B. Block B is to the right of C. Block A contains a medium yellow circle. There are also one big black square and one big yellow triangle in this block. Below the medium yellow circle is the big black square. Near to, above and to the right of the big yellow triangle there is the medium yellow circle. Block B has one big blue triangle. It also has a medium blue square. The big blue triangle is touching the bottom edge of this block. This shape is near to and below the medium blue square. And block C has a big black circle. To the right of the big black circle is a medium blue triangle.
Which object is to the left of a big blue triangle? the big black square or the big black circle?
the big black square  the big black circle  both of them none of them