Which detail from "Justin Lebo” best shows that Justin is caring? A - "They were so happy," Justin remembers. "It was like they couldn't believe it. It made me feel good just to see them happy."
B - "Will you help me fix it up?" he asked. Justin's hobby was bike racing, a passion the two of them shared.
C - Justin wheeled the bike out of the garage, leapt aboard, and started off around the block. He stood up and mashed down on the pedals, straining for speed.
D - Justin stood back as if he were inspecting a painting for sale at an auction. Then he made his final judgment: perfect.

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