We have three blocks. We call them A, B and C. Block A contains a medium black square. Block B is to the left of block A. It contains one medium blue square, a medium yellow square and a medium black square. The medium blue square is below the medium yellow square. The medium yellow square is below the medium black square. The medium blue square is below the medium black square. To the left of block B there is block C with a medium blue square in it.
Which object is to the right of a medium blue square? the medium black square that is in block B or the medium black square that is in block A?
the medium black square  that is in block B the medium black square  that is in block A both of them none of them