What sentace uses parallel structure

You have been given an assignment to speak on the federal prison system in the u.s. which of the following sources is likely to be the least credible? a. an interview with an inmate of a federal prison b. the us department of justice “federal bureau of prisons” website: c. the website [] which discusses the danger of releasing an alarming number of convicts back into society d. an article from foxnews.com about the florida state penitentiary

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

Which literary device does orwell most use to support his purpose in writing in this passage? characters, to show that what happens on the farm is fiction allegory, to show similarities between the farm and the soviet union point of view, to show how the characters think about the murders setting, to show that events in the soviet union may have been caused by the economy