I just found this out,its 5,sorry for answering so dang on late.
Answer:
The best answer to the question above would be the second sentence. The phrase 'Our mission continues' supports the central idea of the speech which is that America's ongoing fight with the terrorists Al-Qaeda will be one that the country will not easily abandon. Other choices are not the main points.
Explanation:
-She plots a murder against Duncan
-she is more ambitious than her husband
C. Character Development, would be my best answer out of the choices you've stated.