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