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