Which of the following is a common ergonomic solution?

Adjustable workstations or ergonomic chairs are recognized as common ergonomic solutions because they are specifically designed to accommodate the varying needs and preferences of different users, promoting comfort and reducing the risk of musculoskeletal disorders. By allowing workers to modify the height and position of their work surface, seating, and equipment, these solutions help to maintain proper posture and minimize strain during tasks, enhancing overall productivity and well-being.

Other options, while relevant to workplace safety and health, do not directly address ergonomic concerns the way adjustable workstations and ergonomic chairs do. Extra lighting can improve visibility but does not inherently support ergonomic practices. Hard hats are crucial for head protection in hazardous environments but do not relate to ergonomics. Signage reminders can enhance safety awareness, yet they do not provide physical adjustments to work conditions for ergonomic benefit.