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In the context of passive range-of-motion exercises, the correct choice accurately describes movements that specifically involve adduction and abduction, essential concepts in understanding joint mobility.

Adduction refers to the movement of a body part toward the midline of the body, while abduction is the movement away from the midline. When the hip is rotated away from the body, this action is akin to abduction, as it increases the angle between the limb and the midline of the body. Conversely, when the hip is brought back toward the midline, it represents adduction. Therefore, the movement that involves both rotating the hip away from the body (abduction) and returning it (adduction) exemplifies these movements effectively.

In contrast, raising the arm sideways primarily illustrates abduction but does not return to the midline in the context of the singular movement being discussed. Bending the knee upwards involves flexion, which is distinct from adduction and abduction movements. Similarly, spreading the fingers apart indeed illustrates abduction of the fingers, but it does not incorporate adduction, making it an incomplete representation of the two movements specified in the question.

Thus, the movement described represents a complete cycle of adduction and abduction, making it the