There are three blocks, A, B and C. Block A has one big yellow circle. To the left of block A there is block B with a big yellow circle, one medium blue circle and a medium black square in it. This block also has a small black triangle. Below and near to the medium black square there is the big yellow circle. Near to and to the right of the small black triangle there is the medium black square.. Below and to the right of the medium black square there is the medium blue circle. Finally, there is block C. It is to the left of block A. It has one small yellow triangle.
Which object is to the left of a big yellow circle? the medium black square or the small black triangle?
the medium black square  the small black triangle  both of them none of them