Final answer:
A structural barrier to effective performance refers to obstacles or limitations in a company's structure that hinder employees from performing their job effectively. Poor job design is a common structural barrier that can prevent employees from achieving optimal performance.
Step-by-step explanation:
A structural barrier to effective performance refers to any obstacle or limitation in a company's structure that hinders employees from performing their job effectively. Among the options provided, poor job design is a structural barrier that can prevent employees from achieving optimal performance. Poor job design can include tasks that are too difficult or too easy, lack of clarity about responsibilities, or ineffective allocation of resources.