Answer:
The correct answer is letter "A": Mergers and acquisitions; joint ventures and strategic alliances; internal development.
Step-by-step explanation:
Business relationships among companies are crucial. Organizations can take advantage of the competencies of other firms as part of the process of achieving their goals. When corporations' core competencies -not necessarily their products- they can come together to diversify their products and services.
Product diversification can be achieved through mergers, acquisitions, joint ventures, strategic alliances but also through internal development.