We have three blocks. We call them A, B and C. Block A contains two medium blue squares and two other medium black squares. Below medium black square number two and medium black square number one there is medium blue square number one. Below medium blue square number two and medium black square number two is medium black square number one. Medium black square number two is below medium blue square number two. To the left of block A is block B with one medium blue square in it. Below block A there is block C which contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. It is below medium yellow square number two.
What is above the thing that is touching the bottom edge of a block? a medium black square number two or a medium black square number one?
medium black square  number two medium black square  number one both of them none of them