Many Internet addresses have a(n) code denoting categories, such as com for business sites and edu for education sites.

A. Affiliation

Explanation:

Codes on internet addresses like .com .edu .ng .org .net all shows an affiliation to a certain group that they are associated with . Like mentioned in the question, com and edu are most times affiliated with business and education respectively. Ng org and net are affiliated with Nigeria, non-profit organizations and net work related domains respectively.

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