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