There are three blocks, A, B and C. Block A is above block B and it is below block C. Block A contains one medium blue square. Block B has one medium black square. And block C contains two medium black squares. It also has one medium blue square. It is below medium black square number two. Medium black square number one is below the medium blue square and medium black square number two.
Which object is above a medium black square? the medium blue square that is in block C or the medium blue square that is in block A?
the medium blue square  that is in block C the medium blue square  that is in block A both of them none of them