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