There are three blocks. Lets call them A, B and C. Block A has two medium blue squares. A medium yellow square is also in this block. Below the medium yellow square there is medium blue square number two.. Below medium blue square number two and the medium yellow square is medium blue square number one. Then, we have block B with two medium black squares in it. Below medium black square number two there is medium black square number one. Block C is below block B and above block A. It contains a medium yellow square.
Which object is below a medium black square? the medium yellow square that is in block C or the medium yellow square that is in block A?
the medium yellow square  that is in block C the medium yellow square  that is in block A both of them none of them