The nurse assesses a client who comes to the clinic with neck stiffness and discomfort. Which finding of the cervical spine should the nurse inquire further about lifestyle habits?

A. Non-tender palpation of the spinous processes and surrounding muscles suggests that there is no pain or abnormality in those areas, which is not typically related to lifestyle habits. B. Cranial nerve XI (accessory nerve) function is assessed to determine strength and function of neck muscles, but normal performance does not specifically indicate a need to investigate lifestyle habits. C. Cervical range of motion of 25 degrees for flexion and extension is reduced compared to normal ranges, which may be influenced by lifestyle factors such as poor posture or prolonged periods of sitting. This reduced range of motion warrants further inquiry into lifestyle habits that could affect cervical spine health. D. A straight alignment without lateral curves is a normal finding and indicates no apparent misalignment or abnormal posture that would necessitate further investigation into lifestyle habits.