They were a seafaring people who often settled in new lands.
The answer is A, what is a secondary source, well here is the definition
Secondary source: In scholarship a secondary source is a document or recording that relates or discusses information originally presented elsewhere
Hope this helps and enjoy the rest of your day :D
I need more information to answer your question insert the rest of the question you are asking :)
The correct answer is Eat because the subject can be exchanged for They and they goes with eat, not eats.