There are three blocks. Lets call them A, B and C. Block A is above B. Block B is to the left of C. Block A contains one medium blue square. Block B contains a medium black square. And block C has a medium blue square, one medium black square and one medium yellow square. The medium blue square is touching the bottom edge of this block. It is below the medium black square and the medium yellow square. Below the medium yellow square there is the medium black square.
Which object is below a yellow thing? the medium black square which is in block B or the medium black square that is in block C?
the medium black square  which is in block B the medium black square  that is in block C both of them none of them