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