Statement: Nuclear power cannot make a country secure.
Courses of Action:
I. We must stop further expenses on increasing our nuclear power.
II. We must destroy our nuclear capability.
III. We must concentrate on improving our diplomatic relations.
Only III follows
The statement asserts that increasing defensive power does not ensure the safety of a country. It is equally important to maintain good relations with other countries as well. But this does not imply that the country should stop concentrating on increasing defensive power or destroy the existing power. Thus, only III follows.