This answer explains how the author introduces the idea that the Purple code was finally being understood.
What is noticing something interesting about the symbols? (B)
This answer describes the main purpose of paragraphs 8–9.
What is showing why understanding coded messages was difficult? (B)
This answer identifies the central idea of the article.
What is that breaking the Purple code helped the U.S. during WWII?
This answer identifies a claim supported by paragraph 7.
What is the U.S. intercepted and broke coded communications?
This answer explains why the team celebrated in paragraph 3.
What is they realized a breakthrough had been made?
This answer explains why the author describes the celebration in paragraph 3.
What is to show how important the discovery was?
This answer explains how paragraph 8 contributes to understanding the Purple code.
What is explaining how the system worked?
This answer explains how Grotjan contributed to the war effort.
What is by discovering how the Purple code worked?
This answer identifies the claim best supported by evidence in the article.
What is the U.S. used a complex system to intercept communications? (D)
This answer explains what made the Purple code difficult to solve.
What is symbols changed meaning as the machine moved?
This answer explains why the author includes paragraphs 5–7.
What is to show the importance of understanding secret messages? (C)
This answer explains why paragraph 9 focuses on changing symbols.
What is to show why the code was hard to break?
This answer explains why the Purple code mattered.
What is it allowed the U.S. to understand secret Japanese messages?
This answer explains why choice D is the strongest answer in question 10.
What is because multiple details explain how the system worked?
This answer explains the purpose of the cipher machine
What is to encode and decode secret messages?
This answer explains how paragraph 11 strengthens the author’s central claim.
What is explaining the value of decoded messages to the U.S. government? (A)
This answer explains how paragraphs 8–10 work together
What is to explain the complexity of decoding messages?
This answer explains how “Magic” affected World War II.
What is it shortened the war and saved lives?
This answer identifies evidence that supports Grotjan’s importance
What is her discovery led to decoding Purple messages?
This answer explains the importance of building a matching machine
What is it allowed the U.S. to read Japanese messages?
This answer explains why the author includes Grotjan’s quote in paragraph 12.
What is to contrast Grotjan’s modesty with the impact of her work?
This answer explains why the illustration is placed near paragraphs 8–10.
What is to support the explanation of how messages were coded? (A)
This answer best shows the overall importance of codebreaking.
What is intelligence from codes can change the outcome of wars?
This answer best supports the author’s claim about “Magic.”
What is the government statement saying Magic saved lives?
This answer best reveals the importance of Grotjan’s discovery.
What is “Magic” shortened the war and saved thousands of lives? (D)