Which of the following best describes a monopod?

A monopod is accurately described as a one-legged camera stabilizer. This type of support system allows a camera to be stabilized while still providing a degree of mobility. Unlike tripods, which have three legs for a more stable base, monopods are designed for easier transport and quicker setup, making them particularly useful in dynamic shooting conditions where quick adjustments and repositioning are required.

Due to its single leg structure, a monopod provides vertical support and can help reduce camera shake, especially during handheld shooting or when using a heavier camera setup. This makes it an ideal tool for photographers and videographers who need to maintain some level of stability without sacrificing the flexibility of movement.

The other descriptions refer to support systems that do not fit the characteristics of a monopod, such as being a double-legged support or a handheld mount that lacks the stabilizing qualities of a monopod.