Answer:
d. for each benefit period
Explanation:
Medicare part A only covers for the medical care and services. (such as doctor's consultation and nurse's service)
Medicare Part A could require you to pay deductible if you have to stay at the hospital for treatment.
The deductible is pre-determined by the government for each year ($1,408 in 2020). It has to be paid for each benefit period.
Benefit is counted at the moment you are admitted for instay hospital treatment. That $1,408 deductible only cover a maximum of 60 days stay period. If you surpass that, you have to pay additional cost from your own pocket.