I would say true..
Learning materials are important because they can significantly increase student achievement by supporting student learning. For example, a worksheet may provide a student with important opportunities to practice a new skill gained in class
If by power you are referring to physical strength, Alex would benefit from volleyball and archery or tennis and gymnastics. However, as gymnastics requires good flexibility and balance, this may be difficult for Alex. As bicycling and swimming are non-weight bearing sports, these would not play to Alex's physical strengths.
C. chain of command restricts personnel to communicating or sharing information outside their organizational units <span />