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