Read the paragraph from the section
"Language Lessons."
The United States used the
uniqueness of the Navajo
language to its advantage in
World War II. Rather than
encrypting radio messages, it
proved simpler to use Navajos to
speak to each other in their
everyday language to convey
high-security messages. It
worked.
Which sentence from the article is BEST
supported by the paragraph?
They had diverse cultures and