In the value chain concept, upgrading IT is considered what kind of activity?

a. primary activity [Incorrect. Investing in IT is a support activity.]

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b. support activity [Correct. Technology activities, including investing in IT, are considered a support activity.]

c. service activity [Incorrect. The value chain includes only primary and support activities. A service activity is a type of primary activity.]

d. structured activity [Incorrect. The value chain includes only primary and support activities. A structured activity is neither a primary nor a secondary activity.]