Multiple choice general knowledge The chair should be adjusted to at least provide support to what part of the back? The Shoulder Blades The Lumbar Region The middle of the back The Neck Reveal answer Fill a bubble to check yourself B Correct answer Explanation A properly adjusted chair should provide support to the lumbar region (lower back) to maintain the spine's natural curve and prevent lower back pain. The shoulder blades and neck require different types of support. 'Middle of back' is vague.