There are two blocks, A and B. Block A is to the right of B. Block A contains one medium blue square. Block B contains two medium black squares. Medium black square number one is below medium black square number two , a medium yellow square and a medium blue square. Medium black square number two is below the medium yellow square. The medium yellow square is below the medium blue square.
Which object is above a medium black square? the medium blue square that is in block A or the medium blue square that is in block B?
the medium blue square  that is in block A the medium blue square  that is in block B both of them none of them