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