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