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