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