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