There are three blocks, A, B and C. Block B is above block A and to the right of block C. Block A contains one medium blue square and a medium yellow square. The medium blue square is below the medium yellow square. Block B contains one medium yellow square. There is also a medium black square in this block. The medium yellow square is below the medium black square. Block C contains one medium black square. Below a medium yellow square there is 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