The answer is A, agreement
Yes, back then thousands of years ago everyone traded to get what they are needed.
He said that because :
With courage, sacrifice, and hope, Cesar provided service to others and dedicated his life to bring justice, dignity, and respect.
With pointing out the fact that one of his sons died during the Nigerian Civil War, he wanted to point out that many people died during the Nigerian Civil War, a war many people weren't even aware existed at all. This caused a greater awareness in peoples' minds about the war.
John Locke (29 August 1632 – 28 October 1704) was an influential English philosopher and social contract theorist. He developed an alternative to the Hobbesian state of nature and asserted a government could be good only if it received the consent of the governed and protected the natural rights of life, liberty, and estate. If such a consent was not achieved, Locke argued in favour of a right of rebellion, which he referred to as an "appeal to heaven
