Final answer:
Given Beneatha's interactions and personal growth depicted in 'A Raisin in the Sun,' the metaphor 'Her heart was a garden, blooming with hope' suitably reflects her character's aspirations and evolution.
Step-by-step explanation:
In Lorraine Hansberry's A Raisin in the Sun, metaphors serve as powerful tools to convey deeper meanings about characters. Considering the options given, and reflecting on Act 2, Scenes 2-3 of the play, we can relate to Beneatha's character. Beneatha's interactions with George and Asagai reveal different layers of her identity and aspirations. Through these interactions, Beneatha's personality and dreams become apparent, much like a garden reflecting the characteristics of the gardener.
Given this context, the metaphor that best fits her character could be: 'Her heart was a garden, blooming with hope.' This metaphor not only captures the essence of her aspirational nature but also resonates with her continuous growth, underlining her youthful zeal and the nurturing of her increasingly defined sense of self through challenges and affirmations.