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