Read the passage.

"the smiles of my mistress could not remove the deep sorrow that dwelt in my young bosom. indeed, these, in time, came only to deepen my sorrow. she had changed; and the reader will see that i had changed, too. we were both victims of the same overshadowing evil . ."

what is the “overshadowing evil” in this passage from my bondage and my freedom by frederick douglass?

slavery

mr. auld

ignorance

illiteracy