There are three blocks. We call them A, B and C. Block C is to the right of A. Block B is to the right of C. Block A has a medium blue square. Block B has one medium blue square. And block C contains one medium black square and one medium blue square. Below the medium blue square there is a medium yellow square. The medium black square is below the medium yellow square and the medium blue square.
Which object is to the left of a medium blue square? the yellow object or the black object?
the yellow object the black object both of them none of them