There are three blocks. Lets call them A, B and C. Block A is to the left of block B and it is below block C. Block A contains one medium blue square. This block also has one medium yellow square. It also has a medium black square. This shape is below the medium blue square. Below the medium black square and the medium blue square is the medium yellow square. Block B contains a medium yellow square. Block C has one medium blue square.
Which object is below a medium blue square? the medium black square or the medium yellow square that is touching the bottom edge of a block?
the medium black square  the medium yellow square  that is touching the bottom edge of a block  both of them none of them