B
north vietnam won and US soldiers came back in shame because they fled the country
Answer: Assimilation
Explanation: Assimilation is the technique through which minority culture persisting groups are grouped togather to form a dominant cluster . It converts various minority culture in a single unit of mainstream culture .By making a dominant cultural group their values, beliefs ,etc are considered for functioning.
The case mentioned in the question also describe about the cultural assimilation as the merging of different culture into one major culture group to become dominant.
They met new people, shared ideas, and learned new skills.
Authority? ( I probably shouldnt be answering this cause Im not sure, but I hope it helps. good luckk )
A. The destruction of most Egyptian's homes each Spring.