Key terms mean words (terms) that are “key” to the article or story. These terms are important in whatever you’re reading. A key concept is the main idea of a story or article.
C) life is fleeting.
I think this because the line "where the terror of death is no more"
I would say the first one
In Greek mythology, Laius, king of Thebes, consulted the oracles and was told that he would have a son. This son was going to kill him. ... The name Oedipus means “swollen feet”.
