There are three blocks, A, B and C. Block A has one medium blue square and one medium yellow square. Below the medium yellow square there is the medium blue square. Block B is below block A. It contains two medium yellow squares. Medium yellow square number one is below medium yellow square number two. Below block B there is block C with two medium black squares in it. Medium black square number one is touching the bottom edge of this block. This shape is below medium black square number two.
Which object is below a medium yellow square? medium black square number two or the thing that is touching the bottom edge of a block?
medium black square  number two the thing that is touching the bottom edge of a block  both of them none of them