Answer:
The text mostly describes (D) Frederick Douglass witnessing the horrors of slavery.
Step-by-step explanation:
The text vividly recounts the experiences of Frederick Douglass as he bore witness to the atrocities of slavery. It details the harsh realities and brutalities faced by Douglass during this period, providing a firsthand account of the inhumane treatment of enslaved individuals.
The narrative delves into Douglass's struggles for freedom and the profound impact of his observations on his quest for liberty and justice. The focus on Douglass's perspective and the oppressive nature of slavery establishes the text as a compelling depiction of his firsthand experiences.
Option D is correct.