A. Difficulty hearing some types of sounds: Hearing loss is not a complication of immobility. It may be age-related (presbycusis), but not directly related to being bedridden. B. A reddened area over the sacrum: This is an early sign of a pressure injury, a common complication of immobility due to sustained pressure on bony prominences. C. Stiffness in the lower extremities: While stiffness can occur with immobility, it is expected and not a complication. It doesn’t represent a pathologic change the way skin breakdown does. D. Difficulty moving the upper extremities: This could be a residual effect of the stroke, not necessarily a complication of immobility.