The first part of the second paragraph points to 1 being the apt choice. The other choices are farfetched or off the mark.
Referring to the second paragraph, the statement "The printing press offered the prospect that tyrants would never be able to kill a book or suppress an idea" (considered alongside the second part of the fourth paragraph) supports the truth of statement 1. The phrase "diminishing the sway of quacks" indicates the accuracy of statement 2. Additionally, the first and last sentences of this paragraph demonstrate that books and pamphlets could now be printed much faster, affirming the truth of statement 3.
The initial sentence in the fifth paragraph, "Not long after Steve Jobs introduced his iPhone, he said the bound book (which means the printed book) was headed for history's attic," clearly conveys that Steve Jobs intended to suggest that reading printed books would become obsolete or a thing of the past.
While the sentence you mentioned is located in the fourth paragraph, its elaboration is found in the last paragraph. The sentences in this concluding paragraph, such as "The hope of the iPhone, and the Internet in general, was that it would free people in closed societies. But the failure of the Arab Spring, and the continued suppression of ideas in North Korea, China, and Iran, has not borne this out," convey that the author is asserting that the iPhone has not achieved the positive impact on society, akin to the benefits that religion and democracy received from the printing press.
The segment in the fourth paragraph, particularly the statement, "the printing press opened more minds than anything else. it is hard to imagine the French or American revolutions without those enlightened voices in print," strongly supports the conclusion that option 2 is the most appropriate choice.
Examining the sentences in the last paragraph, particularly "The hope of the iPhone, and the Internet in general, was that it would free people in closed societies" and "But I am not sure if the world changed for the better with the iPhone – as it did with the printing press- or merely changed," indicates that the new technology, represented by the iPhone and the Internet, has not been as effective as the printing press in broadening the closed minds of people.
Read the sentence and infer the writer's tone: "The politician's speech was filled with lofty promises and little substance, a performance repeated every election season."