There are three blocks. Lets call them A, B and C. Block A contains two medium blue squares. A medium yellow square is also touching the bottom edge of this block. It also has one medium black square. The medium yellow square is below the medium black square , medium blue square number two and medium blue square number one. Medium blue square number one is below the medium black square.. Below the medium black square there is medium blue square number two. Then, there is block B. It has a medium yellow square. Finally, we have block C. It is to the left of block B and block A is below it. It has a medium blue square.
What is above the thing which is touching the bottom edge of a block? a black thing or a medium blue square?
black thing medium blue square  both of them none of them