Which part of Medicare has no premium but imposes deductibles?

Part A of Medicare is the correct answer because it typically does not require a premium for most beneficiaries, particularly those who have worked for at least 40 quarters in their lifetime and paid Medicare taxes during that time. However, while Part A may not have a monthly premium, it does impose deductibles and coinsurance for hospital stays and other services covered under this part.

Part B requires a monthly premium, which is deducted from Social Security benefits, along with a deductible that beneficiaries must meet before coverage begins. Part C refers to Medicare Advantage plans, which are provided by private insurers and can vary in terms of premiums and benefits. Part D is the prescription drug coverage part of Medicare, which also has premiums associated with it depending on the plan. Thus, the characteristics of Part A clearly align with having no premium but imposing deductibles, making it the correct choice.