We have three blocks, A, B and C. There are two medium yellow squares in block A. This block also has one medium blue square. Medium yellow square number one is touching the bottom edge of this block. Below the medium blue square is medium yellow square number two. Below the medium blue square and medium yellow square number two there is medium yellow square number one. Block B is above block A. It has two medium black squares. Below medium black square number two is medium black square number one. Finally, there is block C which is above block B. It has a medium blue square.
Which object is below a medium blue 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