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