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