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