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