We have three blocks, A, B and C. Block B is above A. Block A is above C. Block A has one medium blue square and a medium black square. The medium blue square is below the medium black square. Block B contains a medium blue square. Block C has a medium black square and one medium blue square. Below the medium blue square is the medium black square.
Which object is below a medium blue square? 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