Based on the excerpt, why was Frederick Douglass significant to the abolitionist movement?

He was elected as a state government official who challenged the system of slavery.
He formed relationships with those who had different views on slavery from his own.
He described his own personal experience under the system of slavery.
He emphasized that an educational system was the main way to end slavery.

The excerpt does not mention any of these options. However, based on the information provided, it can be inferred that Frederick Douglass was significant to the abolitionist movement because he was a prominent African-American writer and speaker who advocated for the end of slavery. He used his own personal experience as a slave to raise awareness about the cruelty and injustices of the system, which helped to mobilize public opinion against slavery.