Refers to changes that result when groups come into continuous firsthand contact.

"Acculturation" refers to changes that result when groups come into continuous firsthand contact.

Explanation:

Acculturation is defined as the process of change in a group of people to another group, that change can be sociological, cultural or psychological. for example a person belongs to another country having his own culture migrated to another country and adopted the culture of that country, this refers to acculturation.

the answer is d. amendments.

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