What is a common use of montage in filmmaking?

Montage is a filmmaking technique that involves piecing together a series of shots in a way that allows for the compression of time and narrative progression in a visually engaging manner. One of its primary uses is to convey the passage of time, often condensing lengthy processes or experiences into a brief sequence. This is effectively demonstrated in sequences that depict a character's training, the changing seasons, or the progression of a relationship, where multiple shots are combined to speed up the narrative and create a dynamic sense of time moving forward.

Other options might focus on different aspects of storytelling, such as character development or detailed visual elements, but the essence of montage excels in its ability to manipulate time and create a rhythm in storytelling, making the viewer feel that time is flowing quickly. In summary, the correct choice emphasizes the function of montage in highlighting time's passage, which is a foundational element in film editing and storytelling.