A motive is to motivate a theme is what the motive should be about
Prefieres agua o leche (do you prefer water or milk) sorry if this is not correct
I'd say that the type of context clue that helps you understand the meaning of the word repining is B. restatement.
If the word is in the middle of the poem, you wouldn't want an explanation or an example, but its synonym in order to understand what that particular word means. At least that is what I believe, I'm sorry if you get this answer wrong. :/
Laocoon(a classic hellenistic piece) , the dying gaul(the very beginning of hellenistic art)
