Which statement is true about balance

when an artwork is balanced , its parts have the same visual weight Radial balance is present when both sides of an artwork are different but visually equalBalance is achieved by using a variety of lines, shapes, and coloursA composition must be symmetrical to be balanced .

A  documentary film  is a nonfictional motion picture intended to document some aspect of reality, primarily for the purposes of instruction, education, or maintaining a historical record.example: farenheit 911

Ihave no idea what are some of the examples