Answer: (C) England is so unequal that if the education system were more effective, the majority of English society would revolt against the upper classes.
Explanation: This is the right answer because she believes that the lower classses should be kept ignorant.
The Vietcong set up checkpoints around the nation, so that would've definitely been a literal and figurative roadblock to any refugees. Hope this helped.
The answer is A because a interjection is a abrupt remark, mainly made as an interruption.