There are three blocks, A, B and C. Block C is below A and block A is below B. Block A contains one medium blue square. Block B has two medium black squares. Medium black square number one is below medium black square number two. And block C has a medium black square and one medium yellow square. The medium black square is below the medium yellow square.
Which object is above a yellow thing? medium black square number two or the medium black square that is in block C?
medium black square  number two the medium black square  that is in block C both of them none of them