Final answer:
The theme best represented in the story is resilience in the face of unexpected challenges, as characters adapt and respond to changes and social pressures.
Step-by-step explanation:
The story presented suggests a theme about the challenges and hardships faced when one must adapt suddenly to unforeseen circumstances. The theme that this story best communicates is not clearly outlined among options A to D, but based on the reactions and adjustments the characters make throughout the excerpts, a fitting theme could be the resilience in the face of unexpected trials. Daria's story is a testament to staying professional under pressure, Bernice undergoes a transformation and faces social challenges, while others exhibit resolve in their circumstances despite internal or external conflicts.