Read the story summary and then answer the question:

Although Herman is talented at mathematics, his true
passion is philosophy. Everyone in his life tells him there is no future in a field like philosophy; the real demand is for scientists, engineers, and others who are expected to have a strong foundation in math. Herman ignores his peers and rejects high-paying careers in favor of a more intellectually satisfying role as a philosophy teacher.

Which statement is most clearly a theme in this story?

A. Philosophy is the best career path

B. An identity must be earned, not chosen

C. Mathematics is a universal language.

D. People should be true to their dreams.