Which group in nineteenth-century america would likely be the most receptive audience for "what to the slave is the fourth of july? ”

But I fancy I hear some one of my audience say, "It is just in this circumstance that you and your brother abolitionists fail to make a favorable impression on the public mind. Would you argue ... Which group in nineteenth-century America would likely be the most receptive audience for "What to the Slave is the Fourth of July?".

B. It is significant because a prominent leader was suggesting that the unequal treatment of African Americans was in direct opposition to the principles of the Declaration of Independence.