Answer:
D. Encouraging
Step-by-step explanation:
Frederick Douglass was an American slave. Douglas at the age of 12 learned alphabets from his slaveholder's wife, Sophia. As he was more interested to learning, he also learned from the white children and others in the neighborhood. Thus he educated himself with whatever little sources he got that time, despite the fact that slaves were not allowed to learn and write.
It was through this reading that Douglass’ ideological resistance to slavery started taking shape. He read newspaper and books and shared his views and knowledge with others.
Finally, Douglass tried to escape from slavery twice before he finally succeeded. He made himself as one of the greatest leaders in American history of his time. He became one of the most famous intellectuals and the most influential black man in 19th-century America.
Thus, Frederick Douglas's autobiography has an encouraging tone to it and it encourages all of us to become great despite of all short comings.