Which of the following is a sentence fragment? A) Not knowing how to build the bookshelf.

B) Not knowing where my dog was hiding, I asked my grandpa to help me find her.

C) My brother is great.

D) My sister and I always make each other laugh.

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