The last one is the answer
Start with the main topic and then break into sub categories
Ex:
Subject : cat meme
Sub: how did cat meme start
Sub: what are cat meme
Sub: how to make your own cat meme
Conclusion and thesis
A. A sentence with two independent clauses separated by a comma without a conjunction.
I believe young Fredrick Douglass was a bit frightened and afraid to do anything but what he's told to do in his early years of life. He had seen his aunt be tortured and was scared to see that happen to himself so he stayed undercover for a long time.