Summarize in one sentence Once these disparate parts were held together by a common enemy, by the fault lines of
world wars and the electrified fence of communism. With the end of the cold war there was the
creeping concern that without a focus for hatred and distrust, a sense of national identity would
evaporate, that the left side of the hyphen - African-American, Mexican-American, Irish-American-
would overwhelm the right. And slow-growing domestic traumas like economic unrest and
increasing crime seemed more likely to emphasize division than community. Today the citizens of
the United States have come together once more because of armed conflict and enemy attack.
Terrorism has led to devastation - and unity.

something along the lines of how wars are and have different methods and impacts on different groups of people.

Explanation: I really just thought this up in a few seconds, it should get you points.

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.

c: the reader is first introduced to the girl bragging about how great

an actor she is.

explanation:

the girl is boasting about how talented she is, but in reality she is not talented enough to gain a part. (this could also be