In 1942, 29 Navajo men joined the U.S. Marines and developed an unbreakable code that would be used across the Pacific during World War II. They were the Navajo Code Talkers. ... The Code Talkers conveyed messages by telephone and radio in their native language, a code that was never broken by the Japanese.
This is True.
He decided not to run for presidency a second time, although he was a president a bit longer than usual because he was appointed as President after JFK was assassinated.
They probably want (a) but the real answer is neither.
