In her persuasive speech, Wei Ling concluded with the following statement:
So the next time you see flyers around campus announcing a blood drive, decide that this will be your moment to get involved—to do something worthwhile, to take a step that may help save someone’s life.
What method of concluding her speech did Wei Ling use?
A、Extended example.
B、Appeal to action.
C、Internal summary.
D、Reference to the introduction.