The answer would be Logos. This is a kind of appeal to reason or logic. When using this kind of appeal, it uses facts and evidence to persuade a the listener of the strength of your argument. This is different from pathos, which is an appeal to the emotions, whereas, ethos, from its word, uses ethics or credibility of the person making the argument.
The Gullah people in South Carolina and Georgia are most known for their rich African culture and language which distinguish them from other African Americans. They have their own creole language, the Gullah language. Their development of a creole culture have helped them conserve much of their linguistic and cultural heritage.
In preparation for a nuclear attack in 1950-60s