We have three blocks. Lets call them A, B and C. Block C is below block A and above block B. Block A has one medium black square. Block B has a medium yellow square and one medium black square. The medium yellow square is touching the bottom edge of this block. It is below the medium black square. Block C has two medium blue squares. Medium blue square number one is below medium blue square number two and a medium black square. There is also a medium yellow square in this block. It is below medium blue square number two. Below medium blue square number two there is the medium black square. It is below the yellow shape which is below medium blue square number two.
Which object is below a medium yellow square? the medium black square that is in block A or the medium black square which is in block C?
the medium black square  that is in block A the medium black square  which is in block C both of them none of them