Question

We must never let the weight of this combination endanger our liberties or democratic processes. We should take nothing for granted. Only an alert and knowledgeable citizenry can compel the proper meshing of the huge industrial and military machinery of defense with our peaceful methods and goals, so that security and liberty may prosper together.
If the writer of this speech wished to add a concluding statement to the end of this paragraph, which would make the most appropriate choice?
A) There are many other dangers facing us as a nation, which also ought not be overlooked.
B) I have done the best I could during my eight years as president, but my legacy is as yet unknown.
C) Of course, some people disagree with me about the potential harm done by the military industrial complex.
D) If we take the proper precautions, we should be safe; if we fail to take the proper precautions, we might be sorry.

Answer 1

The Answer Is D I Believe 
Hope This Helps !

Answer 2

I will say
D) If we take the proper precautions, we should be safe; if we fail to take the proper precautions, we might be sorry.