Which type of line is characterized by continual bending without angles?

The correct choice is characterized by its smooth and continuous form, allowing it to flow effortlessly without interruption. Curved lines are often used in design to create a sense of movement or softness, contrasting with the rigidity of straight or angular lines. They can be found in nature and are often associated with organic, flowing shapes that evoke feelings of harmony and elegance.

In design, curved lines can lead the eye in a direction, create shapes, and build texture, making them integral in various artistic expressions. Their ability to bend without forming sharp points or angles distinguishes them from other types of lines in design principles. This quality contributes to their versatility in different contexts, from hairstyles to makeup applications, where fluidity is often desired.