Giải hộ em với ạ, em cảm ơn ạ

1. A. How - This option is incorrect because it does not fit grammatically or logically in the context of the sentence. The question is asking for the reason or purpose of cultural identity, not the method or manner in which it is defined.

2. B. foundation - This option is the most suitable choice because it accurately describes culture as the underlying basis or support for traditions and beliefs. It aligns with the context of the sentence.

3. D. seek - This option is the most appropriate choice because it means to actively look for or search for something, which fits the context of the sentence where a person is searching for their roots based on their cultural identity.

4. D. where - This option is the most fitting choice because it refers to the place or origin from which a person comes, which helps define their cultural identity. It aligns with the context of the sentence.

5. C. no longer - This option is the most suitable choice because it indicates that as a person gives up their cultural identity, they can no longer identify themselves with the important things in their lives. It fits the context of the sentence.