There are three blocks. We call them A, B and C. Block A has one medium yellow square. Then, we have block B which has one big blue square, a medium black circle and one medium blue triangle. The big blue square is touching the right edge of this block. Above and to the right of the medium blue triangle there is a small yellow square. To the right of the medium blue triangle and the medium black circle is the big blue square. Block C is to the right of block B and below block A. It contains one big blue circle, one big yellow triangle and a medium yellow triangle. To the right of and below the big yellow triangle there is the big blue circle. To the right of and above the medium yellow triangle there is the big yellow triangle.
Which object is to the left of a big blue circle? the medium blue triangle or the medium yellow square?
the medium blue triangle  the medium yellow square  both of them none of them