Answer:
The answer is C. An conclusion begins an essay, while a conclusion ends it.
I believe the answer is: C: The articles threatened national security
According to the national defense departement, publishing articles regarding Military tactics in vietnam war would potentially endanger the troops in vietnam. We cannot know if vietnam troops have any spies in national soil, so as a precaution, the articles is banned from being published.
A. flappers
I'm not sure what B refers to but i know C. is referring to the recession and D. refers to woman's suffering.
The answer is A
hope it helps