Large companies may manage a number of very different businesses called a. strategic business alliances b. focus groups c. business clusters d. strategic business units

Strategic business units.

Explanation:

Large companies in most cases have a lot of sub-companies under them that run almost independently but report to the headquarters of the large companies about their activities, these sub-companies are known as strategic business units(SBU). The SBU helps the large company gain a large area of coverage.

d) social security number

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