We have two blocks. We call them A and B. Block A is to the right of B. Block A has one medium black circle, a big black circle and one medium black square. Above a medium yellow triangle and the medium black square is the medium black circle. Above and to the right of the medium black square there is the medium yellow triangle. Block B has one small black circle, one medium blue triangle and a big black triangle. The small black circle is to the right of the big black triangle and the medium blue triangle.
What is to the left of the medium black circle? a black square or a medium blue triangle?
black square  medium blue triangle  both of them none of them