We have three blocks. We call them A, B and C. Block C is to the left of B and block B is below A. Block A has one medium black square. Block B has one medium yellow square. And block C has two medium yellow squares. It also has a medium blue square. It is below medium yellow square number two. Medium yellow square number one is below medium yellow square number two. It is below the medium blue square.
Which object is to the left of a medium yellow square? the medium blue square or the medium black square?
the medium blue square  the medium black square  both of them none of them