Help please! Timed test, will give brainliest to correct answer :) 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.