B.abandon the old language and traditions in favor of the new.
Explanation:
When a person assimilates to a new culture, this means that they are taking in the features that define this culture. This can include the new place's principles of government, social behaviour, traditions, language, etc. However, it does not mean that the person needs to abandon all their past cultural traits. Instead, they should be able to celebrate both, as the two cultures are now part of the person's life and identity.