Which of the following best describes the nature of joints?

The correct choice highlights that joints are points where two or more bones connect. This definition encompasses the fundamental role of joints in the skeletal system: they enable movement and provide structural stability. Joints can vary in type—from immovable joints, like those in the skull, to movable joints, such as the knee or elbow—allowing the body to perform a wide range of motions. This versatility is crucial for everyday activities and mobility.

The other choices do not fully capture the complexities of joints. While some joints may be characterized as movable, joints also include immovable and semi-movable types. Therefore, defining them solely as movable parts of the body is too limiting. Describing joints as rigid connections overlooks their flexibility and the variety of movements they can facilitate. Lastly, calling joints soft tissues misrepresents their anatomical structure, as joints include bone, cartilage, and other connective tissues that support movement but are not soft tissues themselves.