Question - Cryptology, the study and use of secret codes, has been an important component of US military strategy since it was first used in the American Revolution to hide sensitive communications from British forces.
How does the author introduce the reader to code talkers?
Answer - by presenting an interesting fact
Why - The reason I say its option A is because the fact that it makes the most sense in a way that, the other options don't make any sense. Option B says telling an entertaining story when its not a story. Option C makes no sense because the first sentence dosen't contain a quotation. Option D makes no sense because the first sentence dosen't ask a question.
Cryptology....was first used in the American Revolution to hide sensitive communications from British forces.
So it is not a question a quotation nor a story but rather it is an interesting fact. The author introduce the reader to code talkers by presenting an interesting fact.
