What is the purpose of an argument's conclusion? a. to introduce new facts or information important to the argument's central theme b. to make the audience angry and force them to forget the author's previous argument c. to question whether the audience has paid attention to the points of the argument d. to restate the central point of the argument and make a final bid for the audience's support

Read the quote from zimmermann in the code book. a future government could inherit a technology infrastructure that's optimized for surveillance, where they can watch the movements of their political opposition, every financial transaction, every communication, every bit of e-mail, every phone call. everything could be filtered and scanned and automatically recognized by voice recognition technology and transcribed. it's time for cryptography to step out of the shadows of spies and the military, and step into the sunshine and be embraced by the rest of us. which question does this paragraph answer? why does zimmermann think encryption is important? what kind of encryption did zimmermann invent? how does zimmermann’s encryption work? who made encryption based on zimmermann’s work?