There are three blocks. We call them A, B and C. Block A has one medium black square. Then, there is block B with a medium yellow square in it. It also contains a medium blue square. The medium yellow square is below the medium blue square. Block C is below block A and block B is above it. It has one medium blue square. One medium yellow square is also touching the bottom edge of this block. Below the medium blue square is the medium yellow square.
Which object is above a medium yellow square? the medium blue square that is in block B or the medium blue square that is in block C?
the medium blue square  that is in block B the medium blue square  that is in block C both of them none of them