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