When managers at general motors evaluated all the firms' various divisions and then chose to close both the saturn and pontiac divisions, it was involved in diversification. product development. portfolio analysis. franchise reevaluation. demarketing

Portfolio analysis

Explanation:

 The portfolio analysis is one of the type of management that helps in reviewing all the elements in the portfolio of the business in an organization.

The main objective of the portfolio analysis is that we can easily analyzing the different types of risks and also properly analyze resources allocation in the given portfolio.

 According to the given question, the manager of the general motors evaluating all firms or companies about the divisions then it involve the portfolio analysis.

 Therefore, Portfolio analysis is the correct answer.  

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