There are three blocks. Lets call them A, B and C. Blocks C and B are below A. Block A has one medium blue square. Block B contains two medium black squares. Medium black square number one is touching the bottom edge of this block. Medium black square number two is below a medium blue square. A medium yellow square is also in this block. This object is below the medium blue square and medium black square number two. Below the medium yellow square and the medium blue square is medium black square number one. And block C has one medium blue square.
Which object is below a medium blue square? the medium blue square that is in block C or the medium blue square that is in block B?
the medium blue square  that is in block C the medium blue square  that is in block B both of them none of them