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