Final answer:
Medicare Supplement core benefits cover the first 3 pints of blood needed for a transfusion, in contrast to Medicare Part A which only contributes to some hospital charges.
Step-by-step explanation:
The question relates to which blood transfusion costs are covered under Medicare Supplement core benefits. The answer is that Medicare Supplement core benefits will pay for the first 3 pints of blood an individual uses. In the scenario described, Medicare Part A would contribute to some hospital charges, and the individual is then responsible for deductibles and copayments.
Medicare Supplement, also known as Medigap, provides coverage that Medicare does not, such as deductibles and copayments for hospital-related services.