Breyers, Bear, & Associates, a consulting firm, equips all of its employees with laptop computers, which they use at their desks and carry to client meetings. What ergonomic challenge may result from employees using these devices throughout the day?

pain from the tactile feedback of pressing keys

distraction from paying attention to posture

shoulder strain from carrying them around

fatigue from taking frequent breaks to move around

physical strain to wrists from improper positioning for typing