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