How does douglass use a biblical allusion to advance his purpose?

a) to illustrate how the slaves suffer like the ancient captive people
b) to relate to the sensibilities of patriotic americans
c) to compare how the slaves feel to strangers in a foreign land
d) to show americans the inappropriateness of their behavior

Among the option given on the question the correct answer is option D.

To show Americans the inappropriateness of their behavior

Explanation: Frederick Douglass was an social reformer,  writer, abolitionist and a statesmen.He became one of the national figure in the New York against slavery as he also escaped from slavery. He wrote many autobiography on the slavery and his life. He depicted his purpose in his writings. His purpose was to abolish he slavery.

However he used biblical allusion to advance on his purpose. Because there many terms in the Bible related to the slavery. Moreover, most of his audience was christian and non believers who are also familiar to Bible.

He compared the Church bell as the bell ring in the slave auction market.However he didn't wanted to say that religion has created slavery. His purpose was to use the biblical term to show the Americans the inappropriateness of their behavior. Most of the slave owner goes to the Church regularly but they did not know how to behave with slaves. They behaved like slaves were less than human.

So Douglass used the Biblical allusion  To show Americans the inappropriateness of their behavior.

alone =having no one else present.

the words "slavery," "devils," and "murderer" evoke a sense of disgust.