Question

One of the author’s purposes in The Code Book is to explain different types of codebreaking to his readers. Which line best demonstrates this purpose?
a theoretical breakthrough would be a fundamentally new way of finding Alice's private key
mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques
a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . . in a computer's display unit
if scientists could build a quantum computer, it would be able to perform calculations with . . . enormous speed

Answer 1

The line that best demonstrates this purpose to explain different types of codebreaking to his readers is C. a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted

What is a Text Purpose?

This refers to the intention of an author when writing a book that he wants to communicate to his readers.

Hence, we can see that based on the given text, the author is of the opinion that codebreaking is relatively easy and wants to explain it and option C best does this.

Read more about The Code Book here:

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