The process whereby the cultural attributes of diverse racial-ethnic groups are blended together to form a new society incorporating the unique contributions of each group is referred to as

The term that is being described above is amalgamation. It is a process of which groups are being mixed together or combining as one. It is being described above where cultural attributes of diverse racial ethnic groups are blended together, in which it shows that they are being combined together or mixed, it is being done in order for them to form a new society. That is why this is being referred as amalgamation.

pretty sure a is right