Answer:
a. The process of assimilation conducted by immigrants that came to the united states.
Step-by-step explanation:
Americanization is the process that every immigrant that comes to the United States undergoes and that makes him loose some part of his culture and beheaviours in order to fit better the society in which he now is immersed.
Learning new values, new ways of life, new ways of entertaining and having fun, and overall learning how the culture works and finally, eventually, adapting to it and become an active member of american society.