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