The view that elderly people need to remain active in a variety of social spheres is called the activity theory. It is one theory of aging that proposes older people are most happy when they are active and has social interactions. These activities would help these people to not think of the lost life roles after they retire. It assumes a relationship between life satisfaction and activity that is positive.
C. By restricting their appearance.
I believe the answer is: <span>war was fought on multiple fronts
The multiple fronts make the Allies surrounded from both sides which limit their movement/mobilization
The alliance have to face the millitary threat from Germany on the enters front. On this front, The soviet union played the most crucial role in preventing the nazi's advance.
</span><span>From the western front, the western Europeans allies fought to stop the advance from japanese and italian army.</span>
