Which company serves as the pharmacy benefits manager (PBM) for LifeX plans?

The correct choice indicates that Proact serves as the pharmacy benefits manager (PBM) for LifeX plans. A pharmacy benefits manager plays a crucial role in managing prescription drug benefits for health insurance plans, which includes negotiating prices with drug manufacturers, managing formulary lists, and overseeing the pharmacy network. Proact is known for its focus on cost management and personalized service, which aligns with the needs of LifeX plans to provide effective pharmacy benefits to its members. This choice showcases Proact’s expertise in managing drug costs and enhancing patient access to necessary medications, distinguishing it as the selected option for LifeX's pharmacy benefits management.