There are three blocks. We call them A, B and C. Block C is below and A is above B. Block A has one medium blue square and one medium yellow square. Below the medium yellow square is the medium blue square. Block B has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. And block C contains a medium black square and a medium yellow square. It also contains one medium blue square. The medium blue square is below the medium yellow square and the medium black square. The medium black square is below the medium yellow square.
Which object is below a medium yellow square? medium yellow square number one or the medium yellow square which is in block C?
medium yellow square  number one the medium yellow square  which is in block C both of them none of them