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