Which of the following statements was not an event that signified the importance and secrecy of the Navajo Code?
a.
Japanese officers were able to crack the code easily after capturing Joe Kieyoomia
b.
The Navajo Code was used only in top secret military intelligence missions.
c.
Code talkers reported only to the highest ranking officers.
d.
Code talkers' efforts allowed for the planning and execution of the attack on the Solomon Islands.

The concept that Japanese police officer were capable to hit the code only after arresting Joe Kieyoomia was not an event that symbolized the importance and secrecy of the Navajo Code.

What was the Navajo Code?

Code-speakers from the Navajo tribe were describes that the Native American soldiers used their native linguistic communication as codes to relay critical disciplines signaling over open radio movements end-to-end World War I.

The Navajo Code was exclusively utilized in top-secret military intelligence tasks at the time, and Code talkers' efforts allowed for the planning and execution of the Solomon Islands attack.

Therefore, option a is correct.

Learn more about the Navajo Code, refer to:

https://brainly.com/question/3859055

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