Observation is a very important part of science. It lets us see the results of an experiment, even if they are not the results we expect. It lets us see unexpected things around us that might stimulate our curiosity, leading to new experiments. Even more important than observation is accurate observation. Often, our eyes and our brains play tricks on us, letting us see what we expect to see, instead of what is actually there.
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!
One can be a great force even if one is not fully acknowledged.
