There are three blocks, A, B and C. Block C is to the right of A and block B is above C. Block A has one medium black square. Block B contains one medium yellow square and one medium black square. Below the medium black square there is the medium yellow square. Block C has a medium yellow square. The medium yellow square is touching the bottom edge of this block. This block also has a medium black square. Below the medium black square is the medium yellow square.
What is above the shape that is touching the bottom edge of a block? a medium black square that is in block C or a medium black square that is in block A?
medium black square  that is in block C medium black square  that is in block A both of them none of them