David's grandparents moved to the united states from Country "B" 50 years ago as young people and moved into an ethnic enclave in New York City. David's dad grew up learning english in school and being the translator for his parents. David's dad married a native New Yorker whose family was one of the original settlers of the area. David has grown up speaking english and cannot read, write, nor fluently speak his grandparents native language. This process is best described as. Group of answer choices

hierarchical diffusion

migration diffusion

assimilation

transculturation

acculturation