Read slave is the fourth of july. what is one effect of douglass's use of contradictions in the introduction of his speech?

a. the contradictions show that douglass is difficult to understand in this speech.
b. the contradictions underscore his lack of preparation.
c. the contradictions challenge his audience's assumptions about him.
d. the contractions highlight the complexity of the situation of slavery.

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