Final answer:
The prescription drug plan with no deductible on any tier is the Platinum Plan. It offers extensive coverage without requiring a deductible, but generally has a higher monthly premium.
Step-by-step explanation:
The prescription drug plan (PDP) product that features no deductible on any tier is option C) Platinum Plan. In the context of health insurance, plans are often structured in tiers, with varying levels of coverage, deductibles, and out-of-pocket costs. A no deductible plan means that the beneficiary can use the benefits of the plan without having to pay a preliminary deductible amount. The Platinum Plan typically stands out as the product with the most coverage but also comes with a higher monthly premium compared to other tiered plans like Silver, Gold, or Bronze.