How is Marguerite like a caged bird?

A She feels like she lives behind bars.

B She is trapped by her own silence.

C She hates to sing.

D She is trapped by her grandmother.

55pts

I dont know what book this comes from but the answer should be a due to the fact that if she said she feels like a caged bird then bird live behing bars. Bird love to sing so answer c is wrong and b is wrong because bird arent that silent