Answer:
The signal is a four note melody that Rue sings, and the mocking jays repeat the melody all around the orchard
Explanation:
The correct answer is B.
At the end of the poem, the speaker has only to remember his friend. When he does so, he doesn't need to change places with a king. He has love, and that's all he needs. He doesn't need "the riches of kings" when he has the love of his friend.
