Answer:
Syncretism
Step-by-step explanation:
Let's take a look at the meaning of the different possible answers:
Syncretism : That's the merging of different cultural and religious aspects of different cultures into one, ideally blended in some way. Unlike assimilation that is to eradicate the minority without keeping any aspect of it.
Semantics : Is more a philosophical concept of trying to find the meaning of words mostly, and study the languages, human or computer languages.
Semiology : That's the study of the signs, so that's not related to the question either.