I believe the answer would be the second option, this is because the text states that amazonencore has been publishing since 2009, which eliminates the other choices (the first uses the word 'now' claiming they 'now' publish books, the second is not stated in the passage, so it isnt important. The last option claims amazon went through 'conflicts' but it did not, in fact the kindle is an amazon product) If you have any questions, dont hesitate to ask! I hope this helped!
Answer:
The sentence that begins the introduction of this article excerpt is In 2008, more than one million American students gave nearly 20 million service hours to their communities
Explanation:
The introduction of any kind of written work has to be made with a topic sentence, this kind of sentence is always the first or second sentence in a paragraph, each paragraph has a topic sentence of the first paragraph the one that introduces the main idea of the complete work, in this case for the full excerpt that would be "In 2008, more than one million American students gave nearly 20 million service hours to their communities"
I think i may have had the same text and my answer was snake... hope this helps have a nice day
