Answer:
Part A=Ignorant
Part B=It shows that Douglass's new awareness of how owners maintain control over slaves allows him to better understand how to improve his situation.
Step-by-step explanation:
(Part A) Youthful best fits with ignorant because hes younger and cant comprehend or is more naive.
(part B) Hes older now and has a greater understanding therefore hes no longer ignorant and is aware.