There are three blocks, A, B and C. There is a small yellow square in block A. Block B is below block A. It has a medium yellow square and one medium black square. This block also contains one small yellow circle. It is above the medium black square. The medium yellow square is near to and above the medium black square. To the left of block B there is block C which contains one small blue circle and a medium yellow triangle. A big yellow triangle is to the right of and below the medium yellow triangle. Above and near to the medium yellow triangle there is the small blue circle.
What is to the left of the small yellow circle? a medium yellow triangle or a small yellow square?
medium yellow triangle  small yellow square  both of them none of them