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