A. Joins with one or more companies, but retains its autonomy and relies on the other companies to perform specific functions
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B. Seeks to obtain the best deals from various vendors for equipment, supplies, and services such as telephones, overnight mail, computer hardware and software, and copy machines

C. Merges with one or more companies to form an entirely new company

D. Chooses to contract with vendors who provide specific functions that would otherwise be performed in-house, such as paying claims