From Human Code Machines

A-by stating that their messages were impossible to understand.

B-by stating that most had never been off their reservation.

C-by stating that they communicated orally and not in writing.

D-by stating that they named planes and boats after animals.

A-paragraph 3

B-paragraph 5

C-paragraph 6

D-paragraph 9

A-by showing how they mixed language and culture in the code.

B-by showing that they started by encoding 400 words.

C-by showing how they proved the Navy couldn't break the code.

D-by showing that they met several times to encode new terms.

A-"...the first letter of each word spelled out Mt. Suribachi."

B-"The Navajo Code Talkers were unique in cryptographic history."

C-"Even today, their code remains one of the few in history that was never broken."

D-"The Navjo language contained no words for the horrors of war."

The Navajo's code was based on animal names.

The Navajo's code was based on a zoo.

The Navajo's code was based on the first letter of the animals in a zoo.

The Navajo's code was based on bird names.

to disprove that something is good or effective beyond a doubt.

to prove something doesn't work beyond a doubt.

to prove something is good or effective beyond a doubt.

to prove that the code doesn't work.

in the details about the Navajo living on a reservation and they had no electricity or indoor plumbing, and only a few schools.

in the details about the Navajo men volunteering to fight.

in the details about the Navajo language containing no words for the horrors of war such as Bomber, battleship, grenade--- all were terms foreign to the Navajo.

in the details about the Navajo language not known to foreigners and the language was entirely oral and not written down so they developed a code using the language for the war and they would have never taken Iwo Jima without it.