The caged bird sings/ with a fearful trill/ of things unknown/but longed for still ("Caged Bird" Stanza 3)
Answer: Option B
Step-by-step explanation:
Caged bird is a poem written by Maya Angelou. From the third stanza of the poem we get to known that on one side the free bird is flying high in the sky enjoying the amazing morning, but the caged bird on the other hand is helpless and is violently raging for his confinement.
This situation is very similar to that of the African Americans who are still denied of many rights in white community and there have been hardly any progress made for their social wellbeing.