In a Speech,Rebecca Said: "Thus,you Should Now Understand the Three

Multiple Choice

In a speech,Rebecca said: "Thus,you should now understand the three most recommended methods for enhancing your ability to recall people's names: the repetition method,the word-association method,and the visual imagery method.I hope that you will put these methods into practice and that you will remember my name the next time you see me in the hall.Thank you." What device is Rebecca making use of in her speech?

A) A transition
B) A preview statement
C) An internal summary
D) A final summary