<span>After 9/11 the law enforcement apparatus of the U.S. began operating at a heightened level of alert. Media coverage of the events of 9/11 and those deemed responsible garnered a wave of xenophobia and prejudice against peoples of middle eastern descent in the U.S. As an immigrant, Zeitoun was an unfortunate victim trapped between the changing practices and mentalities of a pre and post 9/11 America.</span>
Answer:
Ending a sentence with a preposition is believed by a lot of people to be incorrect.
Explanation:
Preposition is a word which is used to create a relationship between other words in a sentence. Ending a sentence with preposition according to John Dryden a dramatist in 1672 said that <em>'since one cannot end a sentence with preposition in Latin, one should not do it in English either."</em>
Ending a sentence with preposition such as 'at, or, with, of, is prohibited in English language. Ending a sentence with a preposition especially in research paper or business proposal, sounds less formal. Therefore it is a rule not to end a sentence with preposition.
I would go with the first the 3. Placing the telescope on the tripod. was chosen by the astronomy club
