There was a booming knock at the door and a loud shout. " Open up! " From inside came the rattle of a lock, and then the door opened barely half an inch. A woman, dishevelled and clearly shaken, peered through hesitantly. " Can I help you? " Detective Stirland loomed large before her. He flipped his ID badge. " Where's Joe, Mandy? " " What's this about? " she stammered. Stirland applied his weight to the door and the woman stepped backwards as it swung open. " I'll ask the questions. We know he's here. " Her eyes flitted from his face to the lounge door and back. " Joe! " She folded her arms defiantly, reluctantly. " Joe, you'd better come out. The police are here. "
The last sentence certainly sums up the rest of the contents. I think you ought to choose the second answer.
Answer:
B. By reminding the country of its vow to protect Vietnam.
Explanation:
Because in each section, their is a constant add on that the USA vowed and promised to protect and help Vietnam.
and I just took the test anyways so...