Question

1. the navajo code talkers

a. were able to trick the germans
b. were able to trick the japanese
c. spoke in an unbreakable code
d. worked in defense plants on the home front

Explanation:

The Navajo Code Talkers used the Navajo language to create a code that was unbreakable by the Japanese during World War II. Option a is incorrect as they were mainly against Japanese, not Germans. Option b is incorrect as they didn't "trick" but used a secure code. Option d is incorrect as they were in the military, not defense plants on the home front. Option c accurately describes their role as using an unbreakable code.

Answer:

c. spoke in an unbreakable code