There are three blocks, A, B and C. Block A is below C and block B is above A. Block A contains two medium blue squares. Medium blue square number one is below medium blue square number two. Block B contains one medium black square. And block C has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. There is also a medium black square touching the bottom edge of this block. The medium black square is below medium yellow square number two. This shape is below medium yellow square number one.
Which object is below a medium black square? medium blue square number two or medium blue square number one?
medium blue square  number two medium blue square  number one both of them none of them