Which 2019 pharmaceutical merger created a company with the world's largest drug portfolio and combined annual revenue of approximately $74 billion?

In the world of medicine and pharmaceuticals, mergers and acquisitions can dramatically reshape the industry landscape, creating powerhouses with expanded research capabilities and market reach. One particular merger in 2019 created what was then the world's largest pharmaceutical company by revenue. Test your knowledge about this landmark business deal that had significant implications for healthcare innovation, drug pricing, and patient care worldwide.

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Bristol-Myers Squibb and Celgene
Takeda and Shire
AbbVie and Allergan
Mylan and Upjohn (Pfizer's off-patent division)