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