There are three blocks. We call them A, B and C. Block A has one medium blue square. Then, there is block B which has a medium black square. Finally, we have block C. It is below block A and block B is to the left of it. It contains two medium black squares. Medium black square number one is below a medium yellow square and medium black square number two. Below medium black square number two there is the medium yellow square.
Which object is above a medium square? medium black square number two or the medium black square which is in block B?
medium black square  number two the medium black square  which is in block B both of them none of them