Final answer:
Part D of Medicare covers 3)both brand name and generic prescription drugs, as introduced by the Medicare Prescription Drug and Modernization Act of 2003.
Step-by-step explanation:
The question refers to Medicare and its prescription drug benefits. Specifically, Part D of Medicare insurance covers both brand name and generic prescription drugs. In 2003, the Medicare Prescription Drug and Modernization Act addressed the lack of a prescription drug benefit, which was particularly hard on the elderly and disabled. It introduced a prescription drug benefit that became operational to help these individuals manage the cost of their medications, recognizing the need for this kind of assistance. The establishment of Part D was an important step to fill the coverage gaps in Medicare.