Which best describes the overall themes of Okita's "In Response to Executive Order 9066" and Cisneros's "Mericans"?

A. Individuals often face discrimination because of their appearances, especially during wartime.
B. Physical appearances are more significant than cultural heritage in determining nationality.
C. People can feel tension between their cultural heritage and American identity due to racism and discrimination.
D. Many older immigrants find it difficult to discover their identities within the culturally varied American landscape.