Answer:
The correct option to answer your question is option "b" - Sophia's grandparents and parents gradually assimilated, taking on the traditions of their new country.
Step-by-step explanation:
Assimilation is a common process that happens when two different cultures interact with each other ending in a result of mixed cultures. This process goes from generation to generation which causes that the youngest ones are not aware of the oldest and traditional cultures where they came from originally. Sophia due to its generation is not clearly aware of the original Italian culture.